Table of Contents
- About This Guide
- Table of Contents
- Overview
- Getting Started
- Packaging Contents
- Phone Installation
- Network Connection
- Phone Initialization
- Phone Status
- Basic Network Settings
- Wireless Network Settings
- Registration
- Touch Screen Display
- Navigating Menus and Fields
- Entering Data and Editing Fields
- Customizing Your Phone
- General Settings
- Audio Settings
- Contact Management
- Call History Management
- Search Source List in Dialing
- System Customizations
- Basic Call Features
- Advanced Phone Features
- Regulatory Notices
- Appendix
- Index
Yealink SIP-T48U User Manual
Displayed below is the user manual for SIP-T48U by Yealink which is a product in the IP Phones category. This manual has pages.
Related Manuals
Copyright
Copyright © 2017 YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD
Copyright © 2017 Yealink(Xiamen) Network Technology CO., LTD. All rights
reserved. No parts of this publication may be reproduced or transmitted in any
form or by any means, electronic or mechanical, photocopying, recording, or
otherwise, for any purpose, without the express written permission of
Yealink(Xiamen) Network Technology CO., LTD. Under the law, reproducing
includes translating into another language or format.
When this publication is made available on media, Yealink(Xiamen) Network
Technology CO., LTD. gives its consent to downloading and printing copies of the
content provided in this file only for private use but not for redistribution. No parts
of this publication may be subject to alteration, modification or commercial use.
Yealink(Xiamen) Network Technology CO., LTD. will not be liable for any damages
arising from use of an illegally modified or altered publication.
Warranty
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS GUIDE ARE
SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND
RECOMMENDATIONS IN THIS GUIDE ARE BELIEVED TO BE ACCURATE AND PRESENTED
WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL
RESPONSIBILITY FOR THEIR APPLICATION OF PRODUCTS.
YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD. MAKES NO WARRANTY OF ANY KIND
WITH REGARD TO THIS GUIDE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Yealink(Xiamen) Network
Technology CO., LTD. shall not be liable for errors contained herein nor for incidental or
consequential damages in connection with the furnishing, performance, or use of this guide.
Declaration of Conformity
Hereby, Yealink(Xiamen) Network Technology CO., LTD. declares that this phone is in conformity
with the essential requirements and other relevant provisions of the CE, FCC.
You can find the CE and FCC information from the label on the back of the IP phone.
Statements of compliance can be obtained by contacting support@yealink.com.
CE Mark Warning
This device is marked with the CE mark in compliance with EC Directives 2014/35/EU and
2014/30/EU.
Part 15 FCC Rules
Any changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause
undesired operation.
Industry Canada (IC)
This Class [B] digital apparatus complies with Canadian ICES-003 and ICCS-03 Part V Rules
Class B Digital Device or Peripheral
Note: This device is tested and complies with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
4. Consult the dealer or an experience radio/TV technician for help.
WEEE Warning
To avoid the potential effects on the environment and human health as a result
of the presence of hazardous substances in electrical and electronic equipment,
end users of electrical and electronic equipment should understand the meaning
of the crossed-out wheeled bin symbol. Do not dispose of WEEE as unsorted
municipal waste and have to collect such WEEE separately.
Customer Feedback
We are striving to improve our documentation quality and we appreciate your feedback. Email
your opinions and comments to DocsFeedback@yealink.com.
GNU GPL INFORMATION
Yealink SIP-T48S IP phone firmware contains third-party software under the GNU General Public License
(GPL). Yealink uses software under the specific terms of the GPL. Please refer to the GPL for the exact
terms and conditions of the license.
The original GPL license, source code of components licensed under GPL and used in Yealink products
can be downloaded online:
http://www.yealink.com/GPLOpenSource.aspx?BaseInfoCateId=293&NewsCateId=293&CateId=293.
About This Guide
v
About This Guide
Thank you for choosing the SIP-T48S IP phone, an ultra-elegant Gigabit IP phone which is
exquisitely designed to provide business telephony features, such as Call Hold, Call Transfer,
Busy Lamp Field, Call Recording, Multicast Paging and Conference over an IP network. It also
features an enhanced user experience and newly developed industrial designs, with a large
touch screen for easy and efficient use.
This guide provides everything you need to quickly use your new phone. First, verify with your
system administrator that the IP network is ready for phone configuration. Also be sure to read
the Packaging Contents and Regulatory Notices sections in this guide before you set up and use
the SIP-T48S IP phone.
Note
In This Guide
Topics provided in this guide include:
Chapter 1 Overview
Chapter 2 Getting Started
Chapter 3 Customizing Your Phone
Chapter 4 Basic Call Features
Chapter 5 Advanced Phone Features
Summary of Changes
This section describes the changes to this guide for each release and guide version.
Changes for Release 81, Guide Version 81.70
Major updates have occurred to the following sections:
Entering Data and Editing Fields on page 38
Configuring an Access URL on page 90
DSS Keys on page 107
Auto Answer on page 138
Network Directory and Network Call Log features are hidden for IP phones in neutral firmware,
which are designed for the BroadWorks environment. Please contact your system administrator
for more information.
User Guide for the SIP-T48S IP Phone
vi
Do Not Disturb (DND) on page 147
Call Forward on page 152
Call Park/Retrieve on page 168
Picking up an Incoming Call of the Monitored User on page 189
Receiving RTP Stream on page 212
BLF Ring Type is moved to Configuring Visual and Audio Alert for BLF Pickup on page 184.
Changes for Release 81, Guide Version 81.20
Major updates have occurred to the following sections:
Wallpaper on page 43
Screen Saver on page 47
Table of Contents
vii
Table of Contents
About This Guide ........................................................................... v
In This Guide .............................................................................................................................................................. v
Summary of Changes ............................................................................................................................................. v
Changes for Release 81, Guide Version 81.70 .......................................................................................... v
Changes for Release 81, Guide Version 81.20 ......................................................................................... vi
Table of Contents ......................................................................... vii
Overview ......................................................................................... 1
Hardware Component Instructions .................................................................................................................. 1
Icon Instructions ....................................................................................................................................................... 3
Feature Status Icons............................................................................................................................................ 3
Line Key Icons ........................................................................................................................................................ 4
Other Icons ............................................................................................................................................................. 8
LED Instructions ........................................................................................................................................................ 9
User Interfaces ....................................................................................................................................................... 10
Phone User Interface ....................................................................................................................................... 10
Web User Interface........................................................................................................................................... 10
Documentations .................................................................................................................................................... 13
Getting Started ............................................................................. 15
Packaging Contents ............................................................................................................................................. 15
Optional Accessories ....................................................................................................................................... 16
Phone Installation ................................................................................................................................................. 18
Network Connection ............................................................................................................................................ 21
Connecting to the Wired Network............................................................................................................. 22
Connecting to the Wireless Network ........................................................................................................ 22
Phone Initialization ............................................................................................................................................... 22
Phone Status ........................................................................................................................................................... 23
Basic Network Settings ....................................................................................................................................... 24
Wireless Network Settings ................................................................................................................................ 26
Activating the Wi-Fi Mode ............................................................................................................................ 27
Connecting to the Wireless Network ........................................................................................................ 27
Viewing the Wireless Network Information ........................................................................................... 31
Managing the Saved Wireless Network ................................................................................................... 32
Disconnecting the Wireless Network Connection ............................................................................... 33
User Guide for the SIP-T48S IP Phone
viii
Deactivating the Wi-Fi Mode ....................................................................................................................... 34
Registration ............................................................................................................................................................. 34
Touch Screen Display .......................................................................................................................................... 35
Navigating Menus and Fields........................................................................................................................... 37
Entering Data and Editing Fields..................................................................................................................... 38
Customizing Your Phone ............................................................. 43
General Settings .................................................................................................................................................... 43
Wallpaper ............................................................................................................................................................. 43
Transparency ...................................................................................................................................................... 46
Screen Saver........................................................................................................................................................ 47
Power Saving ...................................................................................................................................................... 50
Backlight ............................................................................................................................................................... 53
Contrast ................................................................................................................................................................ 54
Language.............................................................................................................................................................. 55
Time & Date ........................................................................................................................................................ 56
Administrator Password ................................................................................................................................. 59
Key As Send ........................................................................................................................................................ 59
Phone Lock .......................................................................................................................................................... 60
Audio Settings ........................................................................................................................................................ 63
Volume .................................................................................................................................................................. 63
Ring Tones ........................................................................................................................................................... 65
Key Tone ............................................................................................................................................................... 67
Contact Management ......................................................................................................................................... 68
Directory ............................................................................................................................................................... 68
Local Directory ................................................................................................................................................... 70
Blacklist ................................................................................................................................................................. 88
Remote Phone Book ........................................................................................................................................ 90
Call History Management .................................................................................................................................. 91
Viewing History Records ................................................................................................................................ 92
Placing a Call from History Records .......................................................................................................... 92
Adding a Contact to the Local Directory/Blacklist ............................................................................... 93
Deleting History Records ............................................................................................................................... 94
Disabling History Record ............................................................................................................................... 95
Search Source List in Dialing ............................................................................................................................ 96
System Customizations....................................................................................................................................... 98
Headset Use ........................................................................................................................................................ 98
Bluetooth Headset.......................................................................................................................................... 100
DSS Keys ............................................................................................................................................................. 107
Account Management .................................................................................................................................. 118
Dial Plan .............................................................................................................................................................. 121
Emergency Number ....................................................................................................................................... 127
Live Dialpad ....................................................................................................................................................... 128
Hotline ................................................................................................................................................................. 128
Table of Contents
ix
Basic Call Features ...................................................................... 131
Placing Calls .......................................................................................................................................................... 132
Answering Calls .................................................................................................................................................... 134
Ending Calls ........................................................................................................................................................... 136
Redialing Numbers ............................................................................................................................................. 136
Recent Call In Dialing ........................................................................................................................................ 136
Auto Answer .......................................................................................................................................................... 138
Auto Redial ............................................................................................................................................................ 140
Call Completion ................................................................................................................................................... 142
Recall ........................................................................................................................................................................ 143
Call Mute ................................................................................................................................................................ 144
Muting a Call .................................................................................................................................................... 145
Muting While Dialing .................................................................................................................................... 146
Call Hold/Resume ............................................................................................................................................... 146
Do Not Disturb (DND) ....................................................................................................................................... 147
Call Forward .......................................................................................................................................................... 152
Static Forwarding ............................................................................................................................................ 152
Dynamic Forwarding ..................................................................................................................................... 161
Call Transfer........................................................................................................................................................... 162
Blind Transfer .................................................................................................................................................... 162
Semi-attended Transfer................................................................................................................................ 163
Attended Transfer ........................................................................................................................................... 164
Call Waiting ........................................................................................................................................................... 164
Conference ............................................................................................................................................................ 165
Local Conference ............................................................................................................................................ 165
Network Conference...................................................................................................................................... 167
Call Park/Retrieve ................................................................................................................................................ 168
FAC Mode .......................................................................................................................................................... 170
Transfer Mode .................................................................................................................................................. 173
Call Pickup ............................................................................................................................................................. 175
Directed Call Pickup ....................................................................................................................................... 175
Group Call Pickup ........................................................................................................................................... 177
Anonymous Call .................................................................................................................................................. 179
Anonymous Call Rejection .............................................................................................................................. 180
Advanced Phone Features ......................................................... 183
Busy Lamp Field (BLF) ........................................................................................................................................ 183
Configuring the BLF Feature on the IP Phone ..................................................................................... 183
Using BLF Feature on the IP Phone ......................................................................................................... 188
BLF List .................................................................................................................................................................... 190
Call Recording ...................................................................................................................................................... 192
Recording Using a USB Flash Drive ......................................................................................................... 193
User Guide for the SIP-T48S IP Phone
x
Recording Using a Record Key .................................................................................................................. 200
Hot Desking .......................................................................................................................................................... 203
Intercom ................................................................................................................................................................. 205
Configuring the Intercom Feature on the IP Phone.......................................................................... 205
Using Intercom ................................................................................................................................................ 207
Multicast Paging .................................................................................................................................................. 208
Sending RTP Stream ...................................................................................................................................... 209
Receiving RTP Stream ................................................................................................................................... 212
Using Multicast Paging ................................................................................................................................. 214
Music on Hold (MoH) ........................................................................................................................................ 215
Automatic Call Distribution (ACD) ............................................................................................................... 216
Shared Call Appearance (SCA) ....................................................................................................................... 219
Configuring SCA Feature on the IP Phone ........................................................................................... 220
Using SCA Feature on the IP Phone ........................................................................................................ 226
Bridged Line Appearance (BLA) ..................................................................................................................... 233
Configuring BLA Feature on the IP Phone ............................................................................................ 234
Using BLA Feature on the IP Phone......................................................................................................... 237
Messages ................................................................................................................................................................ 238
Short Message Service (SMS)..................................................................................................................... 238
Voice Mail .......................................................................................................................................................... 242
Message Waiting Indicator (MWI) ........................................................................................................... 244
Regulatory Notices .................................................................... 247
Service Agreements ........................................................................................................................................... 247
Limitations of Liability ....................................................................................................................................... 247
Safety Instructions .............................................................................................................................................. 247
Appendix..................................................................................... 249
Appendix A – Time Zones ................................................................................................................................ 249
Appendix B – Menu Structure ........................................................................................................................ 251
Index ........................................................................................... 253
Overview
1
Overview
This chapter provides the overview of the SIP-T48S IP phone. Topics include:
Hardware Component Instructions
Icon Instructions
LED Instructions
User Interfaces
Documentations
If you require additional information or assistance with your new phone, contact your system
administrator.
Hardware Component Instructions
The main hardware components of the SIP-T48S IP phone are the touch screen and the keypad.
User Guide for the SIP-T48S IP Phone
2
Hardware component instructions of the SIP-T48S IP phone are:
Item
Description
①
Power Indicator LED
Indicates call status, message status and phone’s system
status.
• Receives an incoming call—Fast-flashing
• Receives a voice mail or text message—Slow-flashing
②
Touch Screen
The screen is touch-sensitive. Tap to select and highlight
screen items.
Shows information about calls, messages, soft keys, time, date
and other relevant data:
• Default account
• Call information—caller ID, call duration
• Icons (for example, )
• Missed call text or second incoming caller information
• Prompt text (for example, “Saving config file!”)
• Time and date
③
HEADSET Key
Toggles and indicates the headset mode.
④
MUTE Key
Toggles and indicates mute feature.
⑤
HOLD Key
Places a call on hold or resumes a held call.
⑥
TRANSFER Key
Transfers a call to another party.
⑦
Speakerphone Key
Toggles and indicates the hands-free (speakerphone) mode.
The key LED illuminates solid green when hands-free
(speakerphone) mode is activated.
⑧
MESSAGE Key
Accesses voice messages.
⑨
REDIAL Key
Redials a previously dialed number.
⑩
• Position the cursor within text you’re updating.
• Enable or disable fields.
• Turn pages or scroll through values for a field.
• Scroll through items.
• Access History and Directory respectively.
Confirms actions or answers incoming calls.
Cancels actions or rejects incoming calls.
⑪
Volume Key
Adjusts the volume of the handset, headset, speaker, ringer or
media.
⑫
Keypad
Provides the digits, letters and special characters in
context-sensitive applications.
⑬
Speaker
Provides hands-free (speakerphone) audio output.
⑭
Hookswitch Tab
Secures the handset in the handset cradle when the IP phone
is mounted vertically. For more information on how to adjust
the hookswitch tab, refer to
Yealink Wall Mount Quick
Overview
3
Item
Description
Installation Guide for Yealink IP Phones
.
⑮
Hookswitch
• Picking up the handset from the handset cradle, the
hookswitch bounces and the phone connects to the line.
• Laying the handset down on the handset cradle, the phone
disconnects from the line.
Icon Instructions
Feature Status Icons
Icons appearing on the status bar are described in the following table:
Icons
Description
Wired network is unavailable
Hands-free (speakerphone) mode
Handset mode
Headset mode
Voice Mail
Text Message
Auto Answer
Do Not Disturb (DND)
Keep Mute
Ringer volume is 0
Phone Lock
Missed Calls
Call Forward
Recording starts successfully (Using a USB flash drive)
User Guide for the SIP-T48S IP Phone
4
Icons
Description
Recording is paused (Using a USB flash drive)
Bluetooth mode is on
Bluetooth headset is both paired and connected
Wi-Fi connection is successful
Wi-Fi connection failed
Wired network is unavailable
Line Key Icons
Icon indicator (associated with line key features):
Icons
Description
Hold/Public Hold
Private Hold
DND
Voice Mail
SMS
Direct Pickup
Group Pickup
DTMF
Prefix
Local Group
XML Group
LDAP
XML Browser
Conference
Forward
Overview
5
Icons
Description
Transfer
ReCall
Record
URL Record
Recording starts successfully (Record/URL Record)
Multicast Paging
Group Listening
Paging List
Hot Desking
Zero Touch
URL
Phone Lock
Directory
Speed Dial
Icon indicator (associated with line)
Icons
Description
The private line registers successfully
The shared/bridged line registers successfully
Register failed
(Flashing)
Registering
DND is enabled on this line
Call forward is enabled on this line
User Guide for the SIP-T48S IP Phone
6
Icon indicator (associated with call park/retrieve park)
Icons
Description
Call Park (Park successfully; Call park idle state)
Call Park (Park failed)
Call Park (Call park ringing state)
Retrieve Park
Icon indicator (associated with BLF/BLF List)
Icons
Description
BLF/BLF List idle state
(Flashing)
BLF/BLF list ringing state
(Flashing)
BLF/BLF list callout state
BLF/BLF list talking state
BLF hold state
BLF list call park state
BLF/BLF List failed state
Note
Icon indicator (associated with intercom)
Icons
Description
Intercom idle state
Intercom ringing state
Callout
Intercom callout state
You can also customize the BLF key LED status and BLF key behavior. Please contact your system
administrator for more information
Overview
7
Icons
Description
Talking
Intercom talking state
Intercom failed state
Icon indicator (associated with ACD)
Icon
Description
Log in the ACD system
The ACD status is available
The ACD state is Wrap up
The ACD status is unavailable
Log out of the ACD system
Icon indicator (associated with a shared line)
The local SCA phone indicates the phone is involved in an SCA call, while the monitoring SCA
phone indicates the phone is not involved in the SCA call.
Icon
Description
The shared line is idle.
(for monitoring SCA phone)
The shared line is seized.
(Flashing)
The shared line receives an incoming call.
(Flashing)
The shared line is dialing.
The shared line is in conversation.
The shared line conversation is placed on public
hold.
The shared line conversation is placed on private
hold.
User Guide for the SIP-T48S IP Phone
8
Icon
Description
(for local SCA phone)
(for monitoring SCA phone)
The shared line conversation is barged in by the
other shared line party.
For a multi-party call, all the shared line parties
participating in this call place the shared line
conversation on hold.
Icon indicator (associated with a bridged line)
The local BLA phone indicates the phone is involved in a BLA call, while the monitoring BLA
phone indicates the phone is not involved in the BLA call.
Icon
Description
The bridged line is idle.
(for monitoring BLA phone)
The bridged line is seized.
(Flashing)
The bridged line receives an incoming call.
(Flashing)
The bridged line is dialing.
The bridged line is in conversation.
The bridged line conversation is placed on hold.
Other Icons
Icon indicator (associated with call recording)
Icon
Description
Recording box is full (Using a record key)
A call cannot be recorded (Using a record key)
Overview
9
Icon
Description
Recording starts successfully (Using a record
key)
Recording cannot be started (Using a record
key)
Recording cannot be stopped (Using a record
key)
Icon indicator (associated with call history)
Icon
Description
Received Calls
Placed Calls
Missed Calls
Forwarded Calls
Icon indicator (associated with contact)
Icon
Description
The default caller photo and contact icon
LED Instructions
Power Indicator LED
LED Status
Description
Solid red
The phone is initializing.
Fast-flashing red
The phone is ringing.
Slow-flashing red
The phone receives a voice mail or text message.
Off
The phone is powered off.
The phone is idle.
The phone is busy.
The call is placed on hold or is held.
The call is muted.
Note
The above introduces the default LED status. The status of the power indicator LED is
configurable via web user interface. For more information, contact your system administrator.
User Guide for the SIP-T48S IP Phone
10
User Interfaces
Two ways to customize configurations of your SIP-T48S IP phone:
The user interface on the IP phone.
The user interface in a web browser on your PC.
The hardware components keypad and touch screen constitute the phone user interface, which
allows the user to execute all call operation tasks and basic configuration changes directly on
the phone. In addition, you can use the web user interface to access all configuration settings. In
many cases, it is possible to use either the phone user interface and/or the web user interface
interchangeably. However, in some cases, it is only possible to use one or the other interface to
operate the phone and change settings.
Phone User Interface
You can customize your phone by tapping to access the phone user interface. The
Advanced option is only accessible to the administrator, and the default administrator password
is “admin” (case-sensitive). For more information on customizing your phone with the available
options from the phone user interface, refer to Customizing Your Phone on page 43.
Note
Web User Interface
In addition to the phone user interface, you can also customize your phone via web user
interface. In order to access the web user interface, you need to know the IP address of your
new phone. To obtain the IP address, press the OK key on the phone when the phone is idle.
Enter the IP address (e.g., http://192.168.0.10 or 192.168.0.10 for IPv4;
http://[2005:1:1:1:215:65ff:fe64:6e0a] or [2005:1:1:1:215:65ff:fe64:6e0a] for IPv6) in the address
bar of a web browser on your PC. The default administrator user name and password are both
“admin” (case-sensitive).
Note
The access to the Advanced settings of the Account or Network via web user interface may be
blocked by the web browser (e.g., Chrome, Firebox) if you have installed “Adblock Plus plugin”.
For a better understanding of the menu structure, please refer to Appendix B – Menu Structure
on page 251.
Overview
11
The main options you can use to customize the IP phone via phone user interface and/or via
web user interface are listed in the following table:
Options
Phone User Interface
Web User Interface
Status
√
√
--IPv4
--MAC
--Firmware
--Network
--Phone
--Accounts
Basic Phone Settings
√
--Wallpaper
--Wallpaper on the Idle Screen
√
--Wallpaper with Dsskey Unfold
√
--Transparency
√
--Screen Saver
√
--Power Saving
x
--Backlight
√
--Contrast
√
×
--Language
√
√
--Time & Date
√
--Administrator Password
√
--Key As Send
√
--Phone Lock
√
--Audio Settings
--Ring Tones
√
--Key Tone
√
--Contact Management
--Directory
×
--Local Directory
√
--Blacklist
√
--Remote Phone Book
×
--Call History Management
√
--Search Source List in Dialing
×
--Headset Use
√
--Bluetooth Headset
√
--DSS Keys
√
--Account Registration
√
--Dial Plan
×
--Emergency Number
×
--Live Dialpad
×
--Hotline
√
User Guide for the SIP-T48S IP Phone
12
Options
Phone User Interface
Web User Interface
Basic Call Features
√
--Recent Call In Dialing
×
--Auto Answer
√
--Auto Redial
√
--Call Completion
√
--ReCall
√
--Do Not Disturb (DND)
√
--Call Forward
√
--Call Transfer
√
--Call Waiting
√
--Conference
×
--Call Park/Retrieve
√
--Call Pickup
√
--Anonymous Call
√
--Anonymous Call Rejection
√
Advanced Phone Features
√
--Busy Lamp Field (BLF)
√
--BLF List
×
--Call Recording
√
--Hot Desking
√
--Intercom
√
--Multicast Paging
×
--Music on Hold
×
--Automatic Call Distribution (ACD)
x
--Shared Call Appearance (SCA)
x
--Bridged Line Appearance (BLA)
x
--Messages
√
SIP Account
√
--User Options
--Activation
√
--Label
√
--Display Name
√
--Register Name
√
--User Name
√
--Password
√
--Server Options
--SIP Server 1/2
√
--Register Port
x
--Outbound Status
√
--Outbound Proxy1/2
√
--Fallback Interval
√
Overview
13
Options
Phone User Interface
Web User Interface
--NAT Status
√
Note
Documentations
The following table shows documentations available for the SIP-T48S IP phone.
Name
Contents
Where found
Language
Quick Start Guide
Basic call features
and phone
customizations
In the package
English
On the website
English/Chinese
User Guide
Phone/Web user
interface settings
Basic call features
and advanced
phone features
On the website
English/Chinese
The table above lists most of the feature options. Please refer to the relevant sections for more
information.
User Guide for the SIP-T48S IP Phone
14
Getting Started
15
Getting Started
This chapter provides the following basic installation instructions and information for obtaining
the best performance with the SIP-T48S IP phone. Topics include:
Packaging Contents
Phone Installation
Network Connection
Phone Initialization
Phone Status
Basic Network Settings
Wireless Network Settings
Registration
Touch Screen Display
Navigating Menus and Fields
Entering Data and Editing Fields
If you require additional information or assistance with your new phone, contact your system
administrator.
Packaging Contents
The following components are included in your SIP-T48S IP phone package:
SIP-T48S IP Phone
User Guide for the SIP-T48S IP Phone
16
Phone Stand
Handset & Handset Cord
Ethernet Cable (2m CAT5E UTP cable)
Quick Start Guide
Check the list before installation. If you find anything missing, contact your system
administrator.
Optional Accessories
The following items are optional accessories for your SIP-T48S IP phone. You need to purchase
them separately if required.
Getting Started
17
Wall Mount Bracket
Power Adapter (5.5mm DC plug)
Headset YHS32/YHS33
Wireless Headset Adapter EHS36
Bluetooth USB Dongle BT40
User Guide for the SIP-T48S IP Phone
18
Wi-Fi USB Dongle WF40
Note
Phone Installation
If your phone is already installed, proceed to Phone Initialization on page 22.
This section introduces how to install the phone:
1) Attach the stand or the optional wall mount bracket
2) Connect the handset and optional headset
3) Connect the optional USB flash drive
4) Connect the power
1) Attach the stand or the optional wall mount bracket
Desk Mount Method
We recommend that you use the accessories provided or approved by Yealink. The use of
unapproved third-party accessories may result in reduced performance.
Getting Started
19
Wall Mount Method (Optional)
Note
2) Connect the handset and optional headset
Note
The EXT port can also be used to connect an expansion module EXP40.
For more information on how to use EHS36 and EXP40, refer to
Yealink EHS36 User Guide
and
Yealink EXP40 User Guide
.
The hookswitch tab has a lip which allows the handset to stay on-hook when the IP phone is
mounted vertically.
The top two slots are plugged up by silica gel. You need to pull out silica gel before attaching the
wall mount bracket. For more information on how to attach the wall mount bracket, refer to
Yealink Wall Mount Quick Installation Guide for Yealink IP Phones
.
User Guide for the SIP-T48S IP Phone
20
3) Connect the optional USB flash drive
Note
4) Connect the power
You have two options for power connections. Your system administrator will advise you which
one to use.
AC power (Optional)
Power over Ethernet (PoE)
AC Power (Optional)
To connect the AC power:
1. Connect the DC plug on the power adapter to the DC5V port on the phone and connect the
other end of the power adapter into an electrical power outlet.
Note
The IP phone should be used with Yealink original power adapter (5V/2A) only. The use of the
third-party power adapter may cause the damage to the phone.
The USB flash drive should be purchased separately if required.
The USB port can also be used to connect the Bluetooth USB dongle BT40 or Wi-Fi USB dongle
WF40. The Bluetooth USB dongle BT40 and Wi-Fi USB dongle WF40 should be purchased
separately. For more information on how to use the BT40 and WF40, refer to
Yealink Bluetooth
USB Dongle BT40 User Guide
and
Yealink Wi-Fi USB Dongle WF40 User Guide
.
Getting Started
21
Power over Ethernet
With the included or a regular Ethernet cable, the SIP-T48S IP phone can be powered from a
PoE-compliant switch or hub.
To connect the PoE:
1. Connect the Ethernet cable between the Internet port on the phone and an available port
on the in-line power switch/hub.
Note
Network Connection
You have two options for network connection. You can select one of them according to the
current office environment.
Connecting to the wired network
Connecting to the wireless network
If in-line power is provided, you don’t need to connect the phone to the power adapter. Make
sure the switch/hub is PoE-compliant.
Important! Do not remove power to the phone while it is updating firmware and configurations.
User Guide for the SIP-T48S IP Phone
22
Connecting to the Wired Network
You can connect your phone to a wired network.
Before connecting your phone to the wired network, it is important to note that the Wi-Fi
feature should be disabled. For more information, refer to Connecting to the Wireless Network
on page 22.
Note
Connecting to the Wireless Network
Yealink SIP-T48S IP phone supports Wi-Fi feature. You can connect your phone to a wireless
network. The wireless network is more convenient and cost-effective than wired network. The PC
port is unavailable when using wireless network. For more information on how to connect to a
wireless network, refer to Wireless Network Settings on page 26.
Phone Initialization
After your phone is powered on, the system boots up and performs the following steps:
Automatic Phone Initialization
The phone finishes the initialization by loading the saved configuration. The touch screen
displays “Welcome Initializing…Please wait” during the initialization.
The phone can also share the network with another network device such as a PC (personal
computer). This is an optional connection. We recommend that you use the Ethernet cable
provided by Yealink. The PC port may be disabled, contact your system administrator for more
information.
Getting Started
23
DHCP (Dynamic Host Configuration Protocol)
The phone attempts to contact a DHCP server in your network to obtain valid IPv4 network
settings (e.g., IP address, subnet mask, default gateway address and DNS address) by default.
Note
Phone Status
You can view phone status via phone user interface or web user interface.
Available information of phone status includes:
General information (IPv4 address or IPv6 address, MAC address and firmware version).
- IPv4 uses a 32-bit address.
- IPv6 is an updated version of the current Internet Protocol to meet the increased
demands for unique IP addresses, using a 128-bit address.
Network status (IPv4 status or IPv6 status, IP mode and MAC address).
Phone status (product name, hardware version, firmware version, product ID, MAC address
and device certificate status).
Account status (register status of SIP accounts).
To view the phone status via phone user interface:
1. Press , or tap ->Status.
2. Tap the desired item to view the specific information.
To view the phone status via web user interface:
1. Open a web browser on your computer.
2. Enter the IP address in the browser’s address bar, and then press the Enter key.
(e.g., “http://192.168.0.10” for IPv4 or “http://[2005:1:1:1:215:65ff:fe64:6e0a]” for IPv6).
If your network does not use DHCP, proceed to Basic Network Settings on page 24.
User Guide for the SIP-T48S IP Phone
24
3. Enter the user name (admin) and password (admin) in the login page.
4. Click Login to login.
The phone status is displayed on the first page of the web user interface.
Note
Basic Network Settings
If your phone cannot contact a DHCP server for any reason, you need to configure network
settings manually. The IP phone can support either or both IPv4 and IPv6 addresses.
If IP mode of the phone is configured as IPv4 & IPv6, you can enter either of them in the
browser’s address bar to view the phone status. IPv6 is not available on all servers. Contact your
system administrator for more information.
Getting Started
25
To configure the IP mode via phone user interface:
1. Tap ->Advanced (default password: admin) ->Network->WAN Port.
2. Tap the gray box of the IP Mode field, and then select the desired value (IPv4, IPv6 or IPv4
& IPv6) from the pull-down list.
3. Tap the Save soft key to accept the change or to cancel.
You can configure a static IPv4 address for the IP phone. Before configuring it, make sure that
the IP mode is configured as IPv4 or IPv4 & IPv6.
To configure a static IPv4 address via phone user interface:
1. Tap ->Advanced (default password: admin) ->Network->WAN Port->IPv4.
2. Tap the gray box of the Type field, and then select Static IP from the pull-down list.
3. Enter the desired value in the IP Address, Subnet Mask, Default Gateway, Pri.DNS and
Sec.DNS field respectively.
4. Tap the Save soft key to accept the change or to cancel.
You can configure a static IPv6 address for the IP phone. Before configuring it, make sure that
the IP mode is configured as IPv6 or IPv4 & IPv6.
User Guide for the SIP-T48S IP Phone
26
To configure a static IPv6 address via phone user interface:
1. Tap ->Advanced (default password: admin) ->Network->WAN Port->IPv6.
2. Tap the gray box of the Type field, and then select Static IP from the pull-down list.
3. Enter the desired value in the IP Address, IPv6 IP Prefix, Default Gateway, Pri.DNS and
Sec.DNS field respectively.
4. Tap the Save soft key to accept the change or to cancel.
Note
Wireless Network Settings
Wi-Fi is a popular wireless networking technology that uses radio waves to provide wireless
high-speed Internet and network connections. You can activate/deactivate the Wi-Fi mode on
the IP phone, and then connect your phone to the desired wireless network.
Note
The wrong network settings may result in inaccessibility of your phone and may also have an
impact on your network performance. For more information on these parameters, contact your
system administrator.
Ensure that the Wi-Fi USB Dongle WF40 is properly connected to the USB port at the back of the
IP phone. For more information, refer to Phone Installation on page 18.
Getting Started
27
Activating the Wi-Fi Mode
When Wi-Fi USB dongle WF40 is connected to the USB port at the back of the IP phone, the
screen will prompt “Wi-Fi adapter has been added, scanning the available wireless network right
now?”. You can tap OK to activate Wi-Fi mode directly and scan Wi-Fi devices automatically.
To activate the Wi-Fi mode via phone user interface:
1. Tap ->Basic->Wi-Fi.
2. Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless networks in your area.
Connecting to the Wireless Network
Three ways to connect IP phone to the wireless network:
Manually connect to an available wireless network
Wi-Fi Protected Setup (WPS)
Manually add a wireless network
User Guide for the SIP-T48S IP Phone
28
Manually Connect to an Available Wireless Network
To manually connect to a wireless network via phone user interface:
1. Tap ->Basic->Wi-Fi.
2. Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless networks in your area.
3. (Optional.) To re-search the available network, tap the Scan soft key.
4. Tap the desired wireless network to connect to your IP phone.
You can also tap after the desired wireless network, and then tap Connect.
5. If the network is secure, enter its password in the Pin field.
6. Tap OK.
Getting Started
29
Once the connection has completed successfully, the prompt “Connect Success.” appears
at the end of the wireless network.
The Wi-Fi icon appears on the touch screen.
Note
Wi-Fi Protected Setup (WPS)
Wi-Fi Protected Setup (WPS) provides simplified mechanisms to configure secure wireless
networks. WPS can automatically configure a wireless network with a network name (SSID) and
strong WPA data encryption and authentication.
Two methods supported by Yealink IP phones in the Wi-Fi protected setup:
Push Button Configuration (PBC): The user simply has to press WPS key on both the IP
phone and gateway/router to connect.
Personal Identification Number (PIN): The user has to enter a PIN generated randomly
by the IP phone on the gateway/router to connect.
For more information on the password of the wireless network, contact your system
administrator.
User Guide for the SIP-T48S IP Phone
30
Push Button Configuration (PBC)
To connect to the wireless network using PBC method:
1. Tap ->Basic->Wi-Fi.
2. Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless networks in your area.
3. Tap the WPS soft key.
The touch screen prompts “WPS has activated, please connect within 120s.”.
4. Long press the WPS key on your gateway/router.
Once WPS setup has completed successfully, the touch screen will prompt “Connect
Success.”.
Personal Identification Number (PIN)
To connect to the wireless network using PIN method:
1. Tap ->Basic->Wi-Fi.
2. Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless networks in your area.
3. Tap the WPS-PIN soft key.
The touch screen pops up a prompt containing a randomly generated PIN.
4. Tap OK.
The touch screen prompts “Please input below PIN code on your Wi-Fi router and press OK
to start connecting: xxx”.
5. Log into your gateway/router’s web interface, and configure it to search the clients. For
more information, refer to the documentation from the gateway/router manufacturer.
Once WPS-PIN setup has completed successfully, the gateway/router’s web interface will
prompt success.
Note
Manually Add a Wireless Network
If your gateway/router has SSID broadcast disabled, it might not appear in the scanning results.
In that case, you must manually add a wireless network.
To add a wireless network:
1. Tap ->Basic->Wi-Fi.
2. Tap the On radio box of the Wi-Fi field.
The IP phone scans the available wireless networks in your area.
3. Tap the Add soft key.
4. Use the WLAN settings obtained from your gateway/router to configure this WLAN Profile
Contact your gateway/router provider for more information.
Getting Started
31
on the IP phone. Do the following:
a) If you select None or WEP from the pull-down list of Security Mode:
Enter the profile name, SSID and WPA shared key in the corresponding fields.
b) If you select WPA-PSK or WPA2-PSK from the pull-down list of Security Mode:
Select the desired Cipher type (TKIP, AES or TKIP AES) from the pull-down list of
Cipher Type.
Enter the profile name, SSID and WPA shared key in the corresponding fields.
5. Tap the Save soft key to accept the change or to cancel.
The connected wireless networks will be saved to Known network list. The Known network list
can store up to 5 wireless networks, you can specify the priority to connect to the corresponding
wireless network.
Viewing the Wireless Network Information
To view the wireless network information via phone user interface:
1. Tap ->Basic->Wi-Fi.
2. Tap after the desired wireless network to view the detailed wireless network
information (e.g., Profile Name, SSID or Signal Strength).
User Guide for the SIP-T48S IP Phone
32
If the IP phone is connected to a wireless network successfully, you can also tap Wireless
Status to view the connected wireless network information.
Managing the Saved Wireless Network
Once the IP phone has ever been connected to a wireless network successfully, the wireless
network profile will be saved in Known network list. The next time you enable Wi-Fi feature, the
IP phone will be automatically connected to the wireless network which has the highest priority
(the top one). Up to 5 wireless network profiles can be saved in Known network list. If you want
to add a new one when the IP phone has already saved 5 wireless network profiles, please delete
the older saved profile before adding.
To manage the saved wireless network:
1. Tap ->Basic->Wi-Fi.
2. Tap Known network to view the saved wireless networks.
Getting Started
33
3. Tap .
4. Do one of the following:
- To edit the wireless network profile:
1) Tap Edit.
2) Edit the desired wireless network information.
3) Tap the Save soft key.
- To change the priority of the wireless network:
1) Tap Move Up or Move Down to improve or lower the priority of the wireless
network that the IP phone automatically connects to.
- To delete the saved wireless network profile:
1) Tap Delete.
If you delete your wireless network profile from your phone, you need to
manually connect to it next time.
Disconnecting the Wireless Network Connection
To disconnect wireless network via phone user interface:
1. Tap ->Basic->Wi-Fi.
2. Do one of the following:
- Tap the connected wireless network.
- Tap after the connected wireless network.
Tap Disconnect.
- Tap Known network.
Tap the connected wireless network.
The wireless network is disconnected. To connect it to your IP phone again, tap the
User Guide for the SIP-T48S IP Phone
34
wireless network again.
Deactivating the Wi-Fi Mode
To deactivate the Wi-Fi mode via phone user interface:
1. Tap ->Basic->Wi-Fi.
2. Tap the Off radio box of the Wi-Fi field.
The Wi-Fi icon disappears from the touch screen.
Registration
Generally, your phone will be deployed with multiple other phones. In this case, your system
administrator will configure the phone parameters beforehand, so that after you start up your
phone, the phone will be registered and ready for use. The SIP-T48S IP phone supports up to 16
accounts. If your phone is not registered, you may have to register it. For more information on
how to register your phone, refer to Account Management on page 118.
Getting Started
35
Touch Screen Display
Idle Screen Display
If the phone has successfully started up, the idle screen will be displayed. The following figure is
an example of what is displayed on the touch screen.
No.
Name
Description
1
Status Bar
Displays the phone’s default account, icons and the
time and date.
2
Default Account
The label of the default account is displayed on the
left of the status bar.
If multiple accounts are already registered, tap and
select the desired default account.
For more information, refer to Default Account on
page 119.
Note: You can configure the IP phone not to display
the default account. Contact your system
administrator for more information.
3
Icons
Icons are displayed in the middle of the status bar.
For more information, refer to Icon Instructions on
page 3.
4
Time and Date
The phone’s time and date are displayed on the
right of the status bar.
For more information, refer to Time & Date on page
56.
5
Line Keys (1-11)
The idle screen displays line keys 1-11. The line keys
1-6 on the left and the line keys 7-11 on the right
can be used to activate up to 11 lines.
Various features can be assigned to line keys.
Each line key can display the label and indicate the
User Guide for the SIP-T48S IP Phone
36
No.
Name
Description
status of the assigned feature.
For more information, refer to Line Keys on page
107.
6
More
Tap to unfold the DSS key list, the DSS keys on idle
screen will display in the first two columns of DSS
key list. You can tap or long tap the desired line key
to configure it.
The DSS key unfold wallpaper can be customized.
For more information, refer to Wallpaper with
Dsskey Unfold on page 45.
7
Wallpaper
Shows the specified wallpaper, which can be
customized. For more information, refer to
Wallpaper on the Idle Screen on page 44.
8
Shortcut Keys
: tap this shortcut key to enter the History
screen and view call history.
: tap this shortcut key to enter the Directory
screen and view contacts.
: tap this shortcut key to toggle the DND mode
or enter the custom DND configuration screen.
: tap this shortcut key to enter the main menu.
Getting Started
37
Configuration Screen Display
No.
Name
Description
1
Screen Title Area
Displays the title of the current menu screen.
2
Operation Option Area
Displays various operation options for different
menu screens.
3
Menu Tree Area
Displays menu items.
Tap the desired menu item to enter the
corresponding feature configuration screen.
4
Configuration Area
Displays configuration items of the highlighted
menu item in the menu tree area.
You can configure feature settings in this area.
5
Soft Keys
Label automatically to identify their
context-sensitive features.
Navigating Menus and Fields
To navigate menus and fields, you can:
Tap soft keys on the touch screen.
Tap menu items, fields, and arrows on the touch screen.
Press keys on the phone keypad.
Note
The menu system will automatically exit to the idle screen after 60 seconds of inactivity.
User Guide for the SIP-T48S IP Phone
38
To operate your phone, follow these tips:
If you want to
Action
Enter the main menu.
Tap .
Return to the idle screen.
Tap .
Go back to the previous menu.
Tap or press .
Select an item.
Tap the item.
Scroll to the item by pressing or .
Scroll through items page by page.
Tap or .
(If you are in the call history, local directory,
language configuration screen or ring tones
configuration screen, you can also press
or .)
Scroll through values for a field.
Tap the field’s highlighted gray box. From the
pull-down list, tap or to scroll through
values page by page, or press or to scroll
values one by one.
Select a value for a field.
From the pull-down list, tap the value or scroll to
the value and then press .
Entering Data and Editing Fields
You can enter data and edit fields using the phone keypad.
Keypad on the phone provides different characters (or numbers) when using the 2aB, abc, Abc,
ABC or 123 input mode. You can change the following input modes to enter data and edit fields
on your phone. When your phone keypad matches the input mode, you can press the keypad
repeatedly to view the character (or number) options and stop to select. When the character (or
number) you want to enter displays in the field, wait for one second, and enter the next
character (or number).
The following table lists the input modes and character (or number) options for the keypad:
Input Mode
Keypad
2aB
abc
Abc
(initials in
capitals)
ABC
123
1
1
2abcABC
abc2äæåàá
âãç
abc2äæåàá
âãç
ABC2ÄÆÅ
ÀÁÂÃÇ
2
Getting Started
39
Input Mode
Keypad
2aB
abc
Abc
(initials in
capitals)
ABC
123
3defDEF
def3èéêëð
def3èéêëð
DEF3ÈÉÊËÐ
3
4ghiGHI
ghi4ìíîï
ghi4ìíîï
GHI4ÌÍÎÏ
4
5jklJKL
jkl5£
jkl5£
JKL5£
5
6mnoMNO
mno6öøòó
ôõñ
mno6öøòó
ôõñ
MNO6ÖØ
ÒÓÔÕÑ
6
7pqrsPQRS
pqrs7ßЅ
pqrs7ßЅ
PQRS7Ѕ
7
8tuvTUV
tuv8ùúûü
tuv8ùúûü
TUV8ÙÚÛ
Ü
8
9wxyzWXY
Z
wxyz9ýÞ
wxyz9ýÞ
WXYZ9ÝÞ
9
0
space
space
space
0
*.,'?!\-()@/:
_;+&%=<>
￡$¥¤[]{}~
^¡¿§#"|
*.,'?!\-()@/:
_;+&%=<>
￡$¥¤[]{}~
^¡¿§#"|
*.,'?!\-()@/:
_;+&%=<>
￡$¥¤[]{}~
^¡¿§#"|
*.,'?!\-()@/:
_;+&%=<>
￡$¥¤[]{}~
^¡¿§#"|
.*:/@[]
#
#
#
#
#
To enter or edit data:
1. Tap the field.
2. Do one of the following:
If you want to
Then you can
Enter only digits (1),
uppercase (A) characters,
lowercase (a) characters, or
alphanumeric (2aB)
characters.
Press a keypad key one or more times (depending
on what input mode you’re in) to enter the
characters that is displayed on the keypad key.
You can tap or abc one or more times to
switch among uppercase (ABC), numeric (123),
alphanumeric (2aB), uppercase and lowercase
(Abc) and lowercase (abc) input modes.
For example, if the input mode is ABC:
User Guide for the SIP-T48S IP Phone
40
If you want to
Then you can
- To enter “A”, press once.
- To enter “B”, press twice quickly.
- To enter “C”, press three times quickly.
- To enter “2ÄÆÅÀÁÂÃÇ”, press more
than three times quickly.
Note: When you are in the uppercase (ABC),
uppercase and lowercase (Abc) or lowercase (abc)
input mode, is not available.
Enter special characters.
Press the keypad key or , or
press .
For Key:
- If it is in the uppercase (ABC), uppercase and
lowercase (Abc) or lowercase (abc soft key)
input mode, it will provide the space
character.
- If it is in the numeric (123) or alphanumeric
(2aB) input mode, it will only provide the
digit 0.
- If it is in the numeric (123) or alphanumeric
(2aB) input mode, it will provide the special
character + by long pressing about 2 seconds
on the dialing/pre-dialing screen.
For key:
- It only provides the pound character #.
For key:
- If it is in the uppercase (ABC), lowercase
(abc), uppercase and lowercase (Abc) or
alphanumeric (2aB) input mode, it will
provide the following special characters:
*.,?!\-()@/:_;+&%=<>￡$¥¤[]{}~^¡¿§#"|.
- If it is in the numeric (123) input mode, it will
provide the following special
characters: .*:/@[].
Delete text you entered.
Press or to position the cursor to the
right of the text you want to delete, and then tap
Delete or to delete one character at a time.
Delete an entire field of data.
Swipe your finger to the left or right to select the
entire field of data, so that the data is highlighted,
and then tap the Delete or .
Getting Started
41
3. Press .
Note
When the phone is on the pre-dialing/dialing screen, characters can also be entered using the
on-screen keypad.
User Guide for the SIP-T48S IP Phone
42
Customizing Your Phone
43
Customizing Your Phone
You can customize your SIP-T48S IP phone by personally configuring certain settings, for
example, wallpaper, time & date and ring tones. You can add contacts to the phone’s local
directory manually or from call history. You can also personalize different ring tones for different
callers.
This chapter provides basic operating instructions for customizing your phone. Topics include:
General Settings
Audio Settings
Contact Management
Call History Management
Search Source List in Dialing
System Customizations
If you require additional information or assistance with your new phone, contact your system
administrator.
General Settings
Wallpaper
You can customize the wallpaper of the SIP-T48S IP phone, and can change the wallpaper image
via phone user interface or web user interface. You can also upload custom pictures as
wallpaper images via web user interface.
The SIP-T48S IP phone supports the file format of pictures in the following table:
Format
Resolution
File Size
*.jpg/*.webp/*.bmp
≤2.0 megapixels
2MB of space should be reserved for the phone
User Guide for the SIP-T48S IP Phone
44
To upload the custom picture via web user interface:
1. Click on Settings->Preference.
2. In the Upload Wallpaper(800*480) field, click Browse to locate the desired picture from
your local system.
3. Click Upload to upload the file.
The custom picture appears in the pull-down lists of Wallpaper and Wallpaper with
Dsskey unfold.
You can only delete the custom wallpaper by clicking Del when selecting the desired custom
wallpaper in the Wallpaper or Wallpaper with Dsskey unfold field.
Note
Wallpaper on the Idle Screen
You can change the wallpaper to display when the phone is idle.
To change the wallpaper on the idle screen via phone user interface:
1. Tap ->Basic->Display->Wallpaper.
The SIP-T48S IP phone screen size is 7 inches (Resolution: 800x480). If the size of the custom
wallpaper doesn’t meet the IP phone screen size, the wallpaper will be stretched or/and zoomed
out according to the IP phone screen size.
Customizing Your Phone
45
2. Tap or , or press or to select the desired wallpaper image.
3. Tap the Save soft key to accept the change or to cancel.
Wallpaper on the idle screen is configurable via web user interface at the path
Settings->Preference->Wallpaper.
Wallpaper with Dsskey Unfold
You can change the wallpaper to display when unfolding the DSS key list. Tap More when the
phone is idle to unfold the DSS key list.
User Guide for the SIP-T48S IP Phone
46
To change the DSS key wallpaper via phone user interface:
1. Tap ->Basic->Display->Dsskey Wallpaper.
2. Tap or , or press or to select the desired wallpaper image.
3. Tap the Save soft key to accept the change or to cancel.
Wallpaper with Dsskey unfold is configurable via web user interface at the path
Settings->Preference->Wallpaper with Dsskey unfold.
Transparency
If you are using a custom picture with a single color or complex background as the wallpaper
(refer to Wallpaper), it may affect your experience of the idle screen display. You can choose an
appropriate transparency for DSS key labels and status bar on the idle screen as required.
The transparency can be configured from the following options:
0%: The DSS key labels and status bar are non-transparent.
20%, 40%, 60% or 80%: The DSS key labels and status bar are translucent.
100%: The DSS key labels and status bar are transparent.
Customizing Your Phone
47
To change the transparency via phone user interface:
1. Tap ->Basic->Display->Transparency.
2. Tap the gray box of the Transparency field, and then select the desired value from the
pull-down list.
3. Tap the Save soft key to accept the change or to cancel.
Transparency is configurable via web user interface at the path Settings->Preference.
Screen Saver
The screen saver will automatically start when the IP phone is idle for the preset waiting time.
The screen saver is used to blank the screen or fill it with moving images or patterns.
The screen saver will be stopped if one of the following phone events occurs:
Press any key.
Tap the touch screen.
Pick up/hang up the handset.
There is an incoming call.
A new prompt (e.g., missed call, new voice mail or forwarded call).
The status of BLF key changes.
User Guide for the SIP-T48S IP Phone
48
If your phone is idle again for a specified period of time, the screen saver will start again. The
time & date and certain feature status icons (e.g., a new text message, auto answer, DND) will
also display on the screen saver. For more information on the icons, refer to Icon Instructions on
page 3. You can configure the phone whether to display the time & date on the screen saver or
not.
You can configure the screen saver of SIP-T48S IP phone, and upload custom pictures to set up
a screen saver of your picture via web user interface. You can configure the screen saver wait
time, screen saver type and screen saver display clock via phone user interface or web user
interface.
The SIP-T48S IP phone supports the file format of custom pictures in the following table:
Format
Resolution
File Size
*.jpg/*.webp/*.bmp
≤2.0 megapixels
2MB of space should be reserved for the phone
Uploading the Custom Picture
To upload a custom picture via web user interface:
1. Click on Settings->Preference.
2. Select Custom from the pull-down list of Screensaver Type.
3. In the Upload Screensaver field, click Browse to locate the custom picture from your local
system, and then click Upload.
Customizing Your Phone
49
This field appears only if Screensaver Type is set to Custom.
The custom picture appears in Screensaver list. You can only delete the custom picture by
clicking Del in the Screensaver field.
Note
Configuring the Screen Saver
To configure the screen saver via phone user interface:
1. Tap ->Basic->Display->Screensaver.
2. Tap the gray box of the Wait Time field, and then select the desired wait time from the
pull-down list.
3. Tap the On or Off radio box of the Display Clock field.
4. Tap the gray box of the Screensaver Type field and then select the desired screen saver
type from the pull-down list.
This field is configurable only if you have uploaded a custom picture via web user interface.
- If you select System.
The IP phone will automatically set the built-in picture as the screen saver.
- If you select Custom.
You can only upload one custom image at a time via web user interface.
User Guide for the SIP-T48S IP Phone
50
The IP phone will automatically set the custom pictures you upload as the screen saver,
and display these pictures alternately.
5. Tap the Save soft key to accept the change or to cancel.
Screen saver is configurable via web user interface at the path Settings->Preference.
Power Saving
The power saving feature is used to turn off the backlight and screen to conserve energy. The IP
phone enters power-saving mode after it has been idle for a certain period of time.
The IP phone will exit power-saving mode if one of the following phone events occurs:
Press any key.
Tap the touch screen.
Pick up/hang up the handset.
There is an incoming call.
A new prompt (e.g., missed call, new voice mail or forwarded call).
The status of BLF key changes.
If the screen saver is enabled on your phone, power-saving mode will still occur.
You can configure the following power-saving settings:
Office Hour
Idle Timeout (minutes)
The office hour and idle timeout (minutes) settings work only if the power saving feature is
enabled.
Note
Power saving is configurable via web user interface only.
Customizing Your Phone
51
Enabling the Power Saving
To enable the power saving feature via web user interface:
1. Click on Settings->Power Saving.
2. Select Enabled from the pull-down list of Power Saving.
3. Click Confirm to accept the change.
Configuring the Office Hour
Office Hour specifies the starting time and ending time in the office each day.
To configure the office hour via web user interface:
1. Click on Settings->Power Saving.
User Guide for the SIP-T48S IP Phone
52
3. Enter the starting time and ending time respectively in the desired day field.
4. Click Confirm to accept the change.
Configuring the Idle Timeout
Idle Timeout specifies the period of time before the IP phone enters power-saving mode. The
following three types of idle timeout you can configure:
Office Hours Idle TimeOut: Configures the idle timeout for office hours.
Off Hours Idle TimeOut: Configures the idle timeout for non-office hours.
User Input Extension Idle TimeOut: Configures idle timeout that applies after you use
the IP phone (for example, press a key on the phone, pick up/hang up the handset or tap
the touch screen).
By default, the Office Hours Idle Timeout is much longer than the Off Hours Idle TimeOut. If you
use the IP phone, the idle timeout that applies (User Input Extension Idle Timeout or Office
Hours/Off Hours Idle TimeOut) is the timeout with the highest value. If the phone has an
incoming call or new message, the User Input Extension Idle TimeOut is ignored.
To configure the idle timeout via web user interface:
1. Click on Settings->Power Saving.
2. Enter the desired value in the Office Hours Idle TimeOut field.
The default value is 960, you can set to 1-960.
3. Enter the desired value in the Off Hours Idle TimeOut field.
The default value is 10, you can set to 1-10.
4. Enter the desired value in the User Input Extension Idle TimeOut field.
Customizing Your Phone
53
The default value is 10, you can set to 1-30.
5. Click Confirm to accept the change.
Backlight
Backlight has three options:
Active Level: The intensity of the touch screen when the phone is active. You can change the
intensity of the touch screen. Digits (1-10) represent different intensities. 10 is the highest
intensity.
Inactive Level: The intensity of the touch screen when the phone is inactive. You can select a
low intensity or turn off the backlight.
Backlight Time: The delay time to change the intensity of the touch screen when the phone is
inactive. You can select a desired time to change the intensity or turn on the backlight
permanently.
Always On: Backlight is on permanently.
15s, 30s, 1min, 2min, 5min, 10min or 30min: Backlight is changed when the phone is
inactive after the designated time (in seconds).
You can also change the intensity of the LCD screen of EXP40 connected to the SIP-T48S IP
phone.
To configure the backlight via phone user interface:
1. Tap ->Basic->Display->Backlight.
2. Tap the gray box of the Active Level field, and then select the desired level from the
pull-down list.
3. Tap the gray box of the Inactive Level field, and then select the desired value from the
User Guide for the SIP-T48S IP Phone
54
pull-down list.
4. Tap the gray box of the Backlight Time field, and then select the desired time from the
pull-down list.
5. Tap the Save soft key to accept the change or to cancel.
Backlight is configurable via web user interface at the path Settings->Preference.
Contrast
You can only configure the contrast of the expansion module EXP40 connected to the SIP-T48S
IP phone to a comfortable level on the phone. Ensure that the expansion module has been
connected to the phone before configuration. The intensity of contrast ranges from 1 to 10 and
the highest intensity is 10.
To configure the contrast via phone user interface:
1. Tap ->Basic->Display->Contrast.
If EXP40 is not connected to the phone, the Contrast screen displays "No EXP".
2. Tap the gray box of the Contrast field, and then select the desired value from the
pull-down list.
Customizing Your Phone
55
The default contrast level is “6”.
3. Tap the Save soft key to accept the change or to cancel.
Language
The default language of the phone user interface is English. If the language of your web browser
is not supported by the phone, the web user interface will use English by default. You can
change the language for the phone user interface and the web user interface respectively.
To change the language for the phone user interface:
1. Tap ->Basic->Language.
2. Tap or to scroll through the list of available languages.
3. Tap the desired language.
4. Tap the Save soft key to accept the change.
Text displayed on the phone user interface will change to the selected language.
User Guide for the SIP-T48S IP Phone
56
To change the language for the web user interface:
1. Select the desired language from the pull-down list at the top-right corner of web user
interface.
Text displayed on the web user interface will change to the selected language.
Time & Date
The time and date are displayed on the right of the status bar. You can configure the phone to
obtain the time and date from the SNTP server automatically, or configure the time and date
manually. If the phone cannot obtain the time and date from the Simple Network Time Protocol
(SNTP) server, contact your system administrator for more information.
To configure the SNTP setting via phone user interface:
1. Tap ->Basic->Time & Date->General.
2. Tap the gray box of the Type field, and then select SNTP Settings from the pull-down list.
3. Tap the gray box of the Time Zone field, and then select the time zone that applies to your
area from the pull-down list.
The default time zone is “+8”.
4. Enter the domain name or IP address of SNTP server in the NTP Server1 and NTP Server2
field respectively.
5. Tap the gray box of the Daylight Saving field, and then select the desired value from the
pull-down list.
6. Tap the gray box of the Location field, and then select the desired time zone name from
the pull-down list
Customizing Your Phone
57
This field appears only if Daylight Saving field is selected to Automatic, and the default
time zone name is “China(Beijing)”.
7. Tap the Save soft key to accept the change or to cancel.
Note
To configure the time and date manually via phone user interface:
1. Tap ->Basic->Time & Date->General.
2. Tap the gray box of the Type field, and then select Manual Settings from the pull-down
list.
3. Enter the specific date and time in the corresponding fields.
4. Tap the Save soft key to accept the change.
The time and date displayed on the touch screen will change accordingly.
Please refer to Appendix A – Time Zones on page 249 for the list of available time zones on the IP
phone.
User Guide for the SIP-T48S IP Phone
58
To configure the date and time format via phone user interface:
1. Tap ->Basic->Time & Date->Time & Date Format.
2. Tap the gray box of the Date Format field, and then select the desired date format from
the pull-down list.
3. Tap the gray box of the Time Format field, and then select the desired time format (12
Hour or 24 Hour) from the pull-down list.
4. Tap the Save soft key to accept the change or to cancel.
Time and date are configurable via web user interface at the path Settings->Time & Date.
There are 7 available date formats. For example, for the date format “WWW DD MMM”, “WWW”
represents the abbreviation of the weekday, “DD” represents the two-digit day, and “MMM”
represents the first three letters of the month.
The date formats available:
Date Format
Example (2016-09-02)
WWW MMM DD
Fri, Sep 02
DD-MMM-YY
02-Sep-16
YYYY-MM-DD
2016-09-02
DD/MM/YYYY
02/09/2016
MM/DD/YY
09/02/16
DD MMM YYYY
02 Sep, 2016
WWW DD MMM
Fri, 02 Sep
Note
You can also customize the date format. Contact your system administrator for more information.
Customizing Your Phone
59
Administrator Password
The Advanced option is only accessible to the administrator. The default administrator password
is “admin”. For security reasons, you should change the default administrator password as soon
as possible.
To change the administrator password via phone user interface:
1. Tap ->Advanced (default password: admin) ->Change Password.
2. Enter the old password in the Old PWD field.
3. Enter the new password in the New PWD field.
4. Re-enter the new password in the Confirm PWD field.
5. Tap the Save soft key to accept the change or to cancel.
Administrator password is configurable via web user interface at the path Security->Password.
Key As Send
You can set the “#” key or “*” key to perform as a send key while dialing.
To configure key as send via phone user interface:
1. Tap ->Features->General.
User Guide for the SIP-T48S IP Phone
60
2. Tap the gray box of the Key As Send field, and then select # or * from the pull-down list, or
select Disabled to disable this feature.
3. Tap the Save soft key to accept the change or to cancel.
Key as send is configurable via web user interface at the path Features->General Information.
Phone Lock
You can lock your phone temporarily when you are not using it. This feature helps to protect
your phone from unauthorized use.
When the phone is locked, the following you needed to know:
LCD screen and All keys are locked except the Volume key, digit keys, # key, * key, HEADSET key
and Speakerphone key. You are only allowed to dial emergency numbers, reject incoming calls
by pressing the X key or tapping the Reject soft key, answer incoming calls by lifting the
handset, pressing the Speakerphone key, the HEADSET key, the OK key or tapping the Answer
soft key, and end the call by hanging up the handset, pressing the Speakerphone key, X key or
tapping the End Call soft key.
Note
To activate the phone lock via phone user interface:
1. Tap ->Basic->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field, and then tap the Save soft
key or press OK.
3. Tap the gray box of the Lock Enable field, and then select Enabled from the pull-down list.
4. Enter the desired interval of automatic phone lock in the Lock Time Out field.
The default timeout is 0. It means the phone will not be automatically locked. You need to
long press to lock it immediately when the phone is idle.
The emergency number setting, if desired, must be made before lock activation. For more
information, refer to Emergency Number on page 127.
Customizing Your Phone
61
If it is set to other values except 0 (e.g., 5), the phone will be locked when the phone is
inactive in idle screen for the designated time (in seconds).
5. Tap the Save soft key to accept the change.
When the phone is locked, the touch screen prompts “Phone locked.” and displays the
icon .
To change the phone unlock PIN via phone user interface:
1. Tap ->Basic->Change PIN.
User Guide for the SIP-T48S IP Phone
62
2. Enter the desired value in the Old PIN, New PIN and Confirm PIN field respectively.
3. Tap the Save soft key to accept the change or to cancel.
Note
To unlock the phone via phone user interface:
1. Tap the locked key, the touch screen prompts “Unlock PIN”.
2. Enter the desired PIN in the Unlock PIN field.
3. Tap OK to unlock the phone.
The icon disappears from the touch screen.
You can long press or wait for a period of time (if configured) to lock the phone
again.
Note
The unlock PIN length must be within 15 digits.
You can also unlock the phone by administrator password. When you enter the administrator
password to unlock the phone, the phone will turn to the Change PIN screen.
Customizing Your Phone
63
To deactivate the phone lock via phone user interface:
1. Tap ->Basic->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field, and then tap the Save soft
key or press OK.
3. Tap the gray box of the Lock Enable field, and then select Disabled from the pull-down list.
4. Tap the Save soft key to accept the change.
Phone lock is configurable via web user interface at the path Features->Phone Lock.
Audio Settings
Volume
You can press the Volume key to adjust the ringer volume when the phone is idle or ringing.
You can also press the Volume key to adjust the receiver volume of currently engaged audio
devices (handset, speakerphone or headset) when the phone is in use.
User Guide for the SIP-T48S IP Phone
64
To adjust the ringer volume when the phone is idle:
1. Press to adjust the ringer volume.
To adjust the ringer volume when the phone is ringing:
1. Press to adjust the ringer volume.
You can also press to adjust the ringer volume when selecting a ring tone. For more
information, refer to Ring Tones on page 65.
Note
If ringer volume is adjusted to minimum, the icon will appear on the LCD screen.
Customizing Your Phone
65
To adjust the volume when the phone is during a call:
1. Press to adjust the volume of currently engaged audio device (handset,
speakerphone or headset).
You can also press to adjust the volume when playing back the recorded calls. For
more information, refer to Playing Back Recorded Calls on page 197.
Ring Tones
Ring tones are used to indicate incoming calls. You can select different ring tones to distinguish
different accounts registered on your phone, or to distinguish your phone from your neighbor’s.
To select a ring tone for the phone via phone user interface:
1. Tap ->Basic->Sound->Ring Tones->Common.
2. Tap or to scroll through the list of available ring tones.
3. Tap the desired ring tone.
4. (Optional.) Press to adjust the ringer volume.
5. Tap the Save soft key to accept the change or to cancel.
User Guide for the SIP-T48S IP Phone
66
A ring tone for the phone is configurable via web user interface at the path
Settings->Preference->Ring Type.
To select a ring tone for the account via phone user interface:
1. Tap ->Basic->Sound->Ring Tones.
2. Tap the desired account.
3. Tap or to scroll through the list of available ring tones.
4. Tap the desired ring tone.
If Common is selected, this account will use the ring tone selected for the phone.
5. (Optional.) Press to adjust the ringer volume.
6. Tap the Save soft key to accept the change or to cancel.
A ring tone for the account is configurable via web user interface at the path
Account->Basic->Ring Type.
To upload a custom ring tone for your phone via web user interface:
1. Click on Settings->Preference.
Customizing Your Phone
67
2. In the Upload Ringtone field, click Browse to locate a ring tone file (the file format must
be *.wav) from your local system.
3. Click Upload to upload the file.
The custom ring tone appears in the pull-down list of Ring Type.
You can only delete the custom ring tone by clicking Del when selecting the desired custom
ring tone in the Ring Type field.
Note
Key Tone
If you enable key tone, the phone will produce a sound when you press the keypad.
To configure key tone via phone user interface:
1. Tap ->Basic->Sound->Key Tone.
The priority of ring tone for an incoming call on the phone is as follows:
Contact ring tone (refer to Adding Groups) >Group ring tone (refer to Adding Groups) >Account
ring tone >Phone ring tone.
Single custom ring tone file must be within 8MB and total custom ring tone files must be within
20MB.
Uploading custom ring tones for your phone is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
68
2. Tap the On or Off radio box of the Key Tone field.
3. Tap the Save soft key to accept the change or to cancel.
Key tone is configurable via web user interface at the path Features->Audio.
Contact Management
This section provides the operating instructions for managing contacts. Topics include:
Directory
Local Directory
Blacklist
Remote Phone Book
Directory
Directory provides easy access to frequently used lists. The lists may contain Local Directory,
History, Remote Phone Book and LDAP. You can configure the list(s) to access for the Directory
soft key.
Note
To configure the list(s) to access for the Directory soft key via web user interface:
1. Click on Directory->Setting.
2. In the Directory block, select the desired list from the Disabled column and then
click .
The selected list appears in the Enabled column.
3. Repeat the step 2 to add more lists to the Enabled column.
4. To remove a list from the Enabled column, select the desired list and then click .
LDAP is disabled by default. For more information, contact your system administrator.
Customizing Your Phone
69
5. To adjust the display order of the enabled lists, select the desired list and then click
or .
6. Click Confirm to accept the change.
Note
To view the directory list(s) via phone user interface:
1. Tap when the phone is idle.
- If only one list is enabled for the directory, tap to view the list directly.
The list(s) to access for the Directory soft key is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
70
- If more than one list is enabled for the directory, tap the desired list you want to view,
and then tap OK.
Note
Local Directory
The built-in phone directory can store the names and phone numbers of your contacts. You can
store up to 1000 contacts and 48 groups in your phone's local directory. You can add new
groups and contacts, edit, delete or search for a contact, or simply dial a contact number from
the local directory.
Note
Local directory can be backed up on the provisioning server. For more information, contact
your system administrator.
If the remote phone book and LDAP are not configured in advance, you cannot view remote
phone book and LDAP lists on the phone user interface. For more information on remote phone
book, refer to Remote Phone Book on page 90. For more information on LDAP, contact your
system administrator.
Customizing Your Phone
71
Adding Groups
To add a group to the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap Setting.
3. Tap New Group.
4. Enter the desired group name in the highlighted field.
5. Tap to accept the change.
6. Tap to specify a ring tone for the group.
User Guide for the SIP-T48S IP Phone
72
7. Tap or to scroll through the list of available ring tones.
8. Tap the desired ring tone.
If Auto is selected, this group will use the ring tone according to the priority: Contact ring
tone (refer to Adding Contacts) >Account ring tone (refer to Ring Tones) >Phone ring tone
(refer to Ring Tones). If a specific ring tone is selected, this group will use the ring tone
according to the priority: Contact ring tone (refer to Adding Contacts) >Group ring tone.
9. Tap OK to accept the change.
Editing Groups
To edit a group in the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap Setting.
Customizing Your Phone
73
3. Tap the desired group.
4. Tap after the group name.
5. Edit the group name in the highlighted field.
6. Tap to accept the change.
Deleting Groups
To delete a group from the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap Setting.
3. Tap the desired group.
4. Tap before the group name.
User Guide for the SIP-T48S IP Phone
74
The touch screen prompts the following warning:
5. Tap OK to confirm the deletion or Cancel to cancel.
Adding Contacts
You can add contacts to the local directory in one of the following ways:
Manually
From call history
From a remote phone book
Adding Contacts Manually
To add a contact to the local directory manually:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
Customizing Your Phone
75
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap Add.
If you want add a contact to the specified contact group, you can tap the contact group first,
and then tap Add.
3. Enter the name and the office, mobile or other numbers in the corresponding fields.
4. Tap the gray box of the Account field, and then select the desired account from the
pull-down list.
If Auto is selected, the phone will use the default account when placing calls to the contact
from the local directory.
5. Tap the gray box of the Ring field, and then select the desired ring tone from the pull-down
list.
If Auto is selected, this contact will use the ring tone according to the priority: Group ring
tone (refer to Adding Groups) >Account ring tone (refer to Ring Tones) >Phone ring tone
(refer to Ring Tones).
6. Tap the gray box of the Photo field, and then select the desired photo from the pull-down
list.
7. Tap the Save soft key to accept the change or to cancel.
Note
Adding Contacts from Call History
To add a contact to the local directory from call history:
1. Tap .
2. Tap or to turn pages.
You can also press or to switch pages.
If the contact already exists in the directory, the touch screen will prompt “Contact name
existed!”.
User Guide for the SIP-T48S IP Phone
76
3. Tap after the desired entry.
4. Tap Add.
5. Edit the corresponding fields.
6. Tap the Save soft key to accept the change.
The entry is successfully saved to the local directory.
Customizing Your Phone
77
Adding Contacts from Remote Phone Book
To add a contact to the local directory from a remote phone book:
1. Tap ->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 68), tap
->Remote Phone Book to enter the remote phone book.
2. Tap the desired remote phone book.
The phone then connects to the remote phone book and proceeds to load it. The contacts
in the remote phone book are displayed on the touch screen.
3. Tap after the desired contact in the remote phone book.
4. Tap Add.
User Guide for the SIP-T48S IP Phone
78
5. Edit the corresponding fields.
6. Tap the Save soft key to save the contact to the local directory.
If the contact already exists in the local directory, the touch screen will prompt “Overwrite
the original contact?”. Tap OK to overwrite the original contact in the local directory or
Cancel to cancel.
For more information on remote phone book operation, refer to Remote Phone Book on page
90.
Editing Contacts
To edit a contact in the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap after the desired contact.
Customizing Your Phone
79
If the contact was added to a specified contact group, you can tap the contact group first,
and then tap after the desired contact.
3. Tap the desired field to edit the contact information.
You can tap or to switch the contact you want to edit.
4. Tap the Save soft key to accept the change or to cancel.
Deleting Contacts
To delete a contact from the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap after the desired contact.
If the contact was added to a specified contact group, you can tap the contact group first,
and then tap after the desired contact.
User Guide for the SIP-T48S IP Phone
80
3. Tap Delete.
The touch screen prompts the following warning:
4. Tap OK to confirm the deletion or Cancel to cancel.
To delete all contacts:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap Setting.
3. Tap the checkbox of Select All.
4. Tap Delete.
Customizing Your Phone
81
The touch screen prompts the following warning:
5. Tap OK to confirm the deletion or Cancel to cancel.
Uploading Contact Photos
To upload a new custom photo for a contact via web user interface:
1. Click on Directory->Local Directory.
2. Click Browse, and then locate a photo file from your local computer.
3. Click Upload Photo to upload the photo.
User Guide for the SIP-T48S IP Phone
82
You can click Delete Photo to delete the custom photo.
Note
To change the custom photo for the contact via web user interface:
1. Click on Directory->Local Directory.
2. Click the desired entry you want to edit.
3. Select the desired photo from the pull-down list of Photo.
4. Click Edit to accept the change.
The phone only supports *.png, *.jpg and .bmp format files. The file size must be less than 5M.
You can only delete custom photos.
Customizing Your Phone
83
When you place a call to the contact or receive a call from the contact, the touch screen will
display the contact photo.
Placing Calls to Contacts
To place a call to a contact from the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap the desired contact.
If the contact was added to a specified contact group, you can tap the contact group first,
and then tap the desired contact.
- If only one number for the contact is stored in the local directory, the contact number
will be dialed out.
User Guide for the SIP-T48S IP Phone
84
- If multiple numbers for the contact are stored in the local directory, the touch screen
will prompt:
Tap the desired number. The selected number will be dialed out.
Searching for Contacts
To search for a contact in the local directory:
1. Tap .
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap Search.
Customizing Your Phone
85
3. Enter a few continuous characters of the contact name or continuous numbers of the
contact number (office, mobile or other number) using the keypad.
The contacts whose name or phone number matches the characters entered will appear on
the touch screen. You can dial from the result list.
Importing/Exporting Contact Lists
You can manage your phone’s local directory via phone user interface or web user interface. But
you can only import or export the contact list via web user interface.
To import an XML contact list file via web user interface:
1. Click on Directory->Local Directory.
2. Click Browse to locate a contact list file (the file format must be *.xml) from your local
system.
User Guide for the SIP-T48S IP Phone
86
3. Click Import XML to import the contact list.
The web user interface prompts "The original contact will be covered, continue?".
4. Click OK to complete importing the contact list.
To import a CSV contact list file via web user interface:
1. Click on Directory->Local Directory.
2. Click Browse to locate a contact list file (the file format must be *.csv) from your local
system.
3. (Optional.) Check the Show Title checkbox.
Customizing Your Phone
87
It will prevent importing the title of the contact information which is located in the first line
of the CSV file.
4. Click Import CSV to import the contact list.
5. (Optional.) Mark the On radio box in the Delete Old Contacts field.
It will delete all existing contacts while importing the contact list.
6. Select the contact information you want to import into the local directory from the
pull-down list of Index.
At least one item should be selected to be imported into the local directory.
7. Click Import to complete importing the contact list.
User Guide for the SIP-T48S IP Phone
88
To export a contact list via web user interface:
1. Click on Directory->Local Directory.
2. Click Export XML (or Export CSV).
3. Click Save to save the contact list to your local system.
Note
Blacklist
The built-in phone directory can store names and phone numbers for a blacklist. You can store
up to 30 contacts; add, edit, delete or search for a contact in the blacklist directory, and even call
a contact from the blacklist directory. Incoming calls from the blacklist directory contacts will be
rejected automatically.
To add a contact to the blacklist directory manually:
1. Tap ->Blacklist or tap ->Directory->Blacklist to enter the blacklist directory.
2. Tap Add.
3. Enter the contact’s name and the office, mobile or other numbers in the corresponding
fields.
4. Tap the gray box of the Account field, and then select the desired account from the
pull-down list.
If Auto is selected, the phone will use the default account when placing calls to the contact
from the blacklist directory.
5. Tap the Save soft key to accept the change or to cancel.
To add a contact to the blacklist directory from the local directory:
1. Tap .
Importing/exporting contact lists is available via web user interface only.
Customizing Your Phone
89
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 68), tap
->Directory->All Contacts to enter the local directory.
2. Tap after the desired contact.
If the contact was added to a specified contact group, you can tap the contact group first,
and then tap after the desired contact.
3. Tap Blacklist.
The touch screen prompts the following warning:
4. Tap OK to accept the change or Cancel to cancel.
For operating instructions on editing, deleting, placing calls to and/or searching for contacts in
the blacklist directory, refer to the operating instructions of Editing Contacts on page 78,
Deleting Contacts on page 79, Placing Calls to Contacts on page 83 and/or Searching for
Contacts on page 84.
User Guide for the SIP-T48S IP Phone
90
Remote Phone Book
You can add contacts to the local directory, search for a contact, or simply dial a contact number
from the remote phone book.
You can configure your new phone to access up to 5 remote phone books. The phone supports
up to 5000 remote phone book entries. For the access URL of the remote phone book, contact
your system administrator.
For operating instructions on placing calls to and/or searching for contacts in the remote phone
book, refer to the operating instructions of Placing Calls to Contacts on page 83 and/or
Searching for Contacts on page 84.
Configuring an Access URL
To configure an access URL for a remote phone book via web user interface:
1. Click on Directory->Remote Phone Book.
2. Enter the access URL in the Remote URL field.
3. Enter the name in the Display Name field.
4. Click Confirm to accept the change.
Note
Accessing the Remote Phone Book
To access your remote phone book via phone user interface:
1. Tap ->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 68), tap
->Remote Phone Book to enter the remote phone book.
2. Tap the desired remote phone book.
An access URL for a remote phone book is configurable via web user interface only.
The size of a remote phone book file should be less than 1.5M.
Customizing Your Phone
91
The phone then connects to the remote phone book and proceeds to load it. The contacts
in the remote phone book are displayed on the touch screen.
You can tap to back to the previous interface.
Incoming/Outgoing Call Lookup
To configure incoming/outgoing call lookup and update time interval via web user
interface:
1. Click on Directory->Remote Phone Book.
2. Select Enabled from the pull-down list of Incoming/Outgoing Call Lookup.
3. Enter the desired refresh period in the Update Time Interval(Seconds) field.
The default value is 21600 seconds.
4. Click Confirm to accept the change.
Call History Management
The SIP-T48S IP phone maintains call history lists of Missed Calls, Placed Calls, Received Calls
and Forwarded Calls. Each call history list supports up to 100 entries. You can view call history,
place a call, add a contact or delete an entry from the call history list.
User Guide for the SIP-T48S IP Phone
92
History record feature is enabled by default, if you don’t want to save the call history, you can
disable the feature.
Viewing History Records
To view call history:
1. Tap .
The touch screen displays all call records.
2. Tap or to turn pages.
You can also press or to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view entries
in each call list directly.
3. Tap after the desired entry.
The detailed information of the entry appears on the touch screen.
Placing a Call from History Records
To place a call from the call history list:
1. Tap .
The touch screen displays all call records.
2. Tap or to turn pages.
You can also press or to switch pages.
Customizing Your Phone
93
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view entries
in each call list directly.
3. Tap the desired entry.
Adding a Contact to the Local Directory/Blacklist
To add a contact to the blacklist directory from the call history list:
1. Tap .
The touch screen displays all call records.
2. Tap or to turn pages.
You can also press or to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view entries
in each call list directly.
3. Tap after the desired entry.
4. Tap Blacklist.
5. Enter the desired values in the corresponding fields.
User Guide for the SIP-T48S IP Phone
94
6. Tap the Save soft key.
For more information on local directory and/or blacklist, refer to Local Directory on page 70
and/or Blacklist on page 88.
Deleting History Records
To delete an entry from the call history list:
1. Tap .
The touch screen displays all call records.
2. Tap or to turn pages.
You can also press or to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view entries
in each call list directly.
3. Tap after the desired entry.
4. Tap Delete.
The touch screen prompts “Delete the record?”.
5. Tap OK to confirm the deletion or Cancel to cancel.
To delete all entries from the call history list:
1. Tap .
The touch screen displays all call records.
2. Tap or to turn pages.
You can also press or to switch pages.
You can tap Missed Calls, Placed Calls, Received Calls or Forwarded Calls to view entries
in each call list directly.
3. Tap Setting.
Customizing Your Phone
95
4. Tap the checkbox of Select All.
5. Tap Delete.
The touch screen prompts “Delete all the call records?”.
6. Tap OK to confirm the deletion or Cancel to cancel.
Disabling History Record
To disable history record via phone user interface:
1. Tap ->Features->General.
User Guide for the SIP-T48S IP Phone
96
2. Tap the Off radio box of the History Record field.
3. Tap the Save soft key to accept the change or to cancel.
Search Source List in Dialing
You can search for a contact from the desired lists when the phone is on the dialing screen. The
lists can be Local Directory, History, Remote Phone Book and LDAP.
Note
To configure search source list in dialing via web user interface:
1. Click on Directory->Setting.
2. In the Search Source List In Dialing block, select the desired list from the Disabled column
and click .
The selected list appears in the Enabled column.
3. Repeat the step 2 to add more lists to the Enabled column.
4. (Optional.) To remove a list from the Enabled column, select the desired list and then
click .
LDAP is disabled by default. For more information, contact your system administrator.
Customizing Your Phone
97
5. To adjust the display order of the enabled list, select the desired list, and click
or .
6. Click Confirm to accept the change.
The touch screen will display search results in the adjusted order.
Note
To search for an entry in the enabled search source lists:
1. Pick up the handset, press the Speakerphone key or tap the line key.
2. Enter a few continuous characters of the entry’s name or continuous numbers of the entry’s
phone number (office, mobile or other number).
The entries in the enabled search source lists whose name or phone number matches the
characters entered will appear on the touch screen.
You can tap the desired entry to place a call to the entry.
Search source list in dialing is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
98
System Customizations
Headset Use
If you want to use a wired headset, physically connect your headset to the phone and activate
the headset mode for use. For more information on physically connecting a headset, refer to
Phone Installation on page 18.
If you want to use a wireless headset, insert the Bluetooth USB dongle BT40 into the USB port at
the back of the IP phone. For more information on using a Bluetooth headset, refer to Bluetooth
Headset on page 100.
This section provides an introduction to wired headset use.
Note
Headset Mode Activation/Deactivation
To activate the headset mode:
1. Press on the phone.
The HEADSET key LED illuminates solid green, and the icon appears on the status bar
of the touch screen.
When you tap the line key or the Answer soft key to answer an incoming call, the call is
connected to your headset automatically. For more information on using the headset to
answer a call, refer to Answering Calls on page 134.
With the handset on-hook, enter the desired number and tap Send, the phone will then
place a call using the headset automatically. For more information on using the headset to
place a call, refer to Placing Calls on page 132.
To deactivate the headset mode:
1. Press again on the phone.
The HEADSET key LED goes out, and the icon disappears from the touch screen.
Headset Prior
You can use headset in priority when headset prior feature is enabled. This feature is especially
useful for permanent or full-time headset users.
If both a Bluetooth headset and a wired headset are connected, only the Bluetooth headset can
be used.
To use headset, make sure the headset mode is enabled. Contact your system administrator for
more information.
Customizing Your Phone
99
To enable headset prior via web user interface:
1. Click on Features->General Information.
2. Select Enabled from the pull-down list of Headset Prior.
3. Click Confirm to accept the change.
To use headset prior, you should activate the headset mode in advance:
1. Physically connect the headset.
2. Press to activate the headset mode.
Note
Dual Headset
You can use two headsets when dual headset feature is enabled. To use this feature, you must
physically connect headsets to the headset jack and handset jack respectively. Once the phone
connects to a call, the headset connected to the headset jack will have full-duplex capabilities,
while the one connected to the handset jack will only be able to listen.
If headset prior is enabled, the headset mode will not be deactivated until you press the
HEADSET key again.
If headset prior is disabled, the headset mode can be deactivated by pressing the Speakerphone
key or the HEADSET key.
Headset prior is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
100
To enable dual headset via web user interface:
1. Click on Features->General Information.
2. Select Enabled from the pull-down list of Dual Headset.
3. Click Confirm to accept the change.
Note
Bluetooth Headset
The SIP-T48S IP phone supports Bluetooth. Bluetooth enables low-bandwidth wireless
connections within a range of 10 meters (32 feet). The best performance is in the 1 to 2 meters
(3 to 6 feet) range.
You can activate/deactivate the Bluetooth mode on the phone, and then pair and connect the
Bluetooth headset with your phone. You can pair up to 30 Bluetooth headsets with your phone.
However, only one headset can be connected at a time. You can also disconnect and delete your
Bluetooth headset from the phone.
Note
Dual headset is configurable via web user interface only.
Ensure that the Bluetooth USB dongle BT40 is properly connected to the USB port at the back of
the IP phone. For more information, refer to Phone Installation on page 18.
Customizing Your Phone
101
Activating the Bluetooth Mode
When you insert Bluetooth USB dongle BT40 into the USB port at the back of the IP phone, the
touch screen prompts “Adapter has been added, scanning the bluetooth devices right now?”.
You can tap OK to activate Bluetooth mode directly and then scan Bluetooth devices
automatically.
To activate the Bluetooth mode via phone user interface:
1. Tap ->Basic->Bluetooth.
2. Tap the On radio box of the Bluetooth field.
The IP phone scans the available Bluetooth headsets automatically.
User Guide for the SIP-T48S IP Phone
102
The touch screen displays the Bluetooth device information (device name and MAC
address).
Bluetooth mode is configurable via web user interface at the path Features->Bluetooth.
Pairing and Connecting the Bluetooth Headset
Before you pair a Bluetooth headset, check the indicator on the Bluetooth headset to make sure
that the Bluetooth headset is discoverable. For more information, refer to the documentation
from the Bluetooth headset manufacturer.
To pair and connect your Bluetooth headset to your IP phone:
1. Tap ->Basic->Bluetooth.
2. Tap the Bluetooth device to connect the Bluetooth headset to your IP phone.
If there is no Bluetooth device available on the touch screen, tap the Scan soft key to search
for the Bluetooth device again.
3. Enter the desired PIN in the Password field.
Customizing Your Phone
103
The default PIN is “0000”.
4. Tap the OK soft key.
The Bluetooth headset is then automatically connected to your IP phone. The touch screen
displays as below:
The Bluetooth icon appears on the touch screen.
User Guide for the SIP-T48S IP Phone
104
With the Bluetooth headset paired and connected, you can use the Bluetooth headset to
place and answer calls. For more information, refer to the documentation from the
Bluetooth headset manufacturer.
Viewing the Bluetooth Headset Information
To view the Bluetooth headset information:
1. Tap ->Basic->Bluetooth.
2. Tap the On radio box of the Bluetooth field.
The touch screen displays a list of Bluetooth headsets.
3. You can view the Bluetooth headset information from the Bluetooth Device(s) field.
Device Name: the name of the Bluetooth headset.
MAC Address: the MAC address of the Bluetooth headset.
Connection: the connection status of Bluetooth headset with your phone.
Editing Device Information
To edit device information via phone user interface:
1. Tap ->Basic->Bluetooth.
2. Tap the Edit My Device Information field.
The touch screen displays the device name and MAC address. The MAC address cannot be
edited.
3. Enter the desired name in the Device Name field.
Customizing Your Phone
105
The default device name is “Yealink T48S”.
4. Tap the Save soft key to accept the change or to cancel.
The preconfigured Bluetooth device name will display in scanning list of other devices.
Disconnecting the Bluetooth Headset
You can disconnect the Bluetooth headset from your phone. After you disconnect the Bluetooth
headset, it will still remain paired and be displayed in the Paired Bluetooth Device list. So you
can easily connect it to your IP phone again.
To disconnect your Bluetooth headset from your phone:
1. Tap ->Basic->Bluetooth.
2. Tap the connected Bluetooth headset.
The Bluetooth headset is disconnected. To connect it to your IP phone again, tap the
Bluetooth headset again.
Deleting the Paired Bluetooth Headset
You can delete your Bluetooth headset from your phone. When you delete the Bluetooth
User Guide for the SIP-T48S IP Phone
106
headset, it disappears from the Bluetooth Device(s) list. To connect it to your IP phone again,
you need to scan it first, and then connect it again.
To delete your Bluetooth headset from your phone:
1. Tap ->Basic->Bluetooth.
2. Tap after the Bluetooth headset, and then select Delete from the prompt list.
The touch screen prompts the following warning “Delete selected item?”.
3. Tap OK to confirm the deletion or Cancel to cancel.
You can also delete all headsets by tapping the Delete All soft key.
Deactivating the Bluetooth Mode
To deactivate the Bluetooth mode via phone user interface:
1. Tap ->Basic->Bluetooth.
2. Tap the Off radio box of the Bluetooth field.
The Bluetooth headset won’t be connected anymore, but it will still be paired. When you
activate the Bluetooth mode again, the paired Bluetooth headset will appear in the Bluetooth
Device(s) list.
Customizing Your Phone
107
DSS Keys
There are three types of DSS keys: Line Keys, Programable Keys and Ext Keys. Details will be
introduced in the following. The SIP-T48S IP phone supports 29 line keys and 13 programable
keys.
Line Keys
You can assign predefined functionalities to line keys. You can also define a label for a line key
feature which will appear on the touch screen. Line keys allow you to quickly access features
such as recall and voice mail. The line key can indicate the monitored status when the line keys
are assigned with particular features, such as BLF. The default key type of line key 1-16 is Line.
The default key type of line key 17-29 is N/A, which indicates that this line key provides no
functionality until configuration.
To assign functionality to a line key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Select the desired key type from the Type field.
4. (Optional.) Select the desired key event type from the Key Type field.
5. (Optional.) Select the desired line from the Account ID field.
6. (Optional.) Enter the string that will appear on the touch screen in the Label field.
7. (Optional.) Enter the corresponding value in the Value field.
8. (Optional.) Enter the corresponding value in the Extension field.
9. Tap the Save soft key to accept the change or to cancel.
You can also tap More on the idle screen, and then tap or long tap the desired line key to assign
functionality to it.
Line key is configurable via web user interface at the path Dsskey->Line Key.
Note
Label Length
You can specify labels for some key features, which will be displayed on the idle touch screen. If
the length of the label exceeds the maximum display length, the phone will only display the first
few characters. You can configure the phone to display more characters in two lines via label
length feature.
When the phone is idle, you can also long tap the line key to configure it directly on the phone.
User Guide for the SIP-T48S IP Phone
108
The following figure shows an example of label display when the label length feature is set to
Extended:
The following figure shows an example of label display when the label length feature is set to
Default:
Customizing Your Phone
109
To configure the label length via web user interface:
1. Click on Dsskey->Line Key.
2. Select Extended from the pull-down list of Label Length.
3. Click Confirm to accept the change.
Note
Line Key Features
Line key features are explained in the following subchapters in detail:
Line
Speed Dial
Voice Mail
Direct Pickup
Group Pickup
DTMF
Prefix
Local Group
XML Group
XML Browser
LDAP
SMS
Conference
Forward
Label length feature is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
110
Transfer
Hold
DND
Group Listening
Zero Touch
URL
Phone Lock
Directory
For the features not listed above, refer to Basic Call Features on page 131 and Advanced Phone
Features on page 183. For more information, contact your system administrator.
Line
You can use this key feature to accept incoming calls, place active calls on hold or resume a
held call. It performs in the same way as a hard line key.
Dependencies:
Type (Line)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Usage: When the phone receives an incoming call,
1. Tap the Line key to accept the incoming call.
2. Tap the Line key to place a new call and the active call is placed on hold.
3. Tap the Line key again to resume the held call.
Speed Dial
You can use this key feature to speed up dialing the numbers frequently used or hard to
remember.
Dependencies:
Type (SpeedDial)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the number you want to dial out)
Usage: Tap the Speed Dial key to dial out the number specified in the Value field, using the
account selected from the Account ID field.
Voice Mail
You can use this key feature to quickly connect voice mail. For more information, refer to Voice
Mail on page 242.
Customizing Your Phone
111
Dependencies:
Type (Key Event)
Key Type (Voice Mail)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the voice mail access code)
Usage: Tap the Voice Mail key to dial out the voice mail access code. Then follow the voice
prompt to listen to the voice mails.
Direct Pickup
You can use this key feature to answer someone else’s incoming call on the phone.
Dependencies:
Type (Key Event)
Key Type (DPickup)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the directed call pickup code followed by the target phone number)
Usage: Tap the Direct Pickup key on your phone when the target phone number receives an
incoming call. The call is then answered on your phone.
Group Pickup
You can use this key feature to answer incoming calls in a group that is associated with their
own group.
Dependencies:
Type (Key Event)
Key Type (GPickup)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the group call pickup code)
Usage: Tap the Group Pickup key on your phone when a phone number in the group receives
an incoming call. The call is answered on your phone.
DTMF
You can use this key feature to send the specification of arbitrary key sequences via DTMF.
Dependencies:
Type (Key Event)
Key Type (DTMF)
Label (key label displayed on the touch screen)
Value (DTMF sequence)
Usage: Tap the DTMF key during an active call to send the key sequence specified in the Value
field.
Note
DTMF sequence can only contain “0-9”, “*”, “#” and “A-E”.
User Guide for the SIP-T48S IP Phone
112
Prefix
You can use this key feature to add a specified prefix number before the dialing number.
Dependencies:
Type (Key Event)
Key Type (Prefix)
Label (key label displayed on the touch screen)
Value (the prefix number)
Usage: Tap the Prefix key when the phone is idle, the phone will then enter the dialing screen
and display the prefix number that you specified in the Value field. You can enter the
remaining digits and then dial out.
Local Group
You can use this key feature to quickly access a contact group in the local directory. For more
information, refer to Local Directory on page 70.
Dependencies:
Type (Key Event)
Key Type (Local Group)
Local Group (the contact group name you want to access)
Label (key label displayed on the touch screen)
Usage: Tap the Local Group key to access the contact group specified in the Local Group field.
XML Group
You can use this key feature to quickly access a remote group in your remote phone book. You
should configure a remote phone book in advance. For more information, refer to Remote
Phone Book on page 90.
Dependencies:
Type (Key Event)
Key Type (XML Group)
XML Group (the remote group name you want to access if the remote phone
book is configured)
Label (key label displayed on the touch screen)
Usage: Tap the XML Group key to access the remote group specified in the XML Group field.
XML Browser
You can use this key feature to quickly access an XML browser. The XML browser allows you to
create custom services which meet your functional requirements on the server. You can
customize practical applications, such as weather report, stock information, Google search, etc.
Dependencies:
Type (Key Event)
Key Type (XML Browser)
Label (key label displayed on the touch screen)
Value (the access URL for XML browser)
Usage: Tap the XML Browser key to access the XML browser specified in the Value field.
Customizing Your Phone
113
LDAP
You can use this key feature to quickly access a LDAP search screen.
Dependencies:
Type (Key Event)
Key Type (LDAP)
Label (key label displayed on the touch screen)
Usage:
1. Tap the LDAP key to access the LDAP search screen.
2. Enter a few continuous characters of the contact name or continuous numbers of the
contact number using the keypad.
The contacts whose name or phone number matches the characters entered will appear on
the touch screen.
Note
SMS
You can use this key feature to quickly access text message. For more information, refer to Short
Message Service (SMS) on page 238.
Dependencies:
Type (Key Event)
Key Type (SMS)
Label (key label displayed on the touch screen)
Usage: Tap the SMS key when the phone is idle to access text message.
Conference
You can use this key feature to set up a conference call. For more information, refer to
Conference on page 165.
Dependencies:
Type (Key Event)
Key Type (Conference)
Label (key label displayed on the touch screen)
Value (the number you want to add to the conference)
Usage: Tap the Conference key during an active call to set up a conference with the number
specified in the Value field.
Note
Forward
You can use this key feature to forward an incoming call to someone else. For more information,
refer to Call Forward on page 152.
Dependencies:
Type (Key Event)
If the Value field is left blank, the Conference key performs the same as the Conference soft
key during a call.
LDAP is disabled by default. For more information, contact your system administrator.
User Guide for the SIP-T48S IP Phone
114
Key Type (Forward)
Label (key label displayed on the touch screen)
Value (the number you want to forward to)
Usage: Tap the Forward key to forward an incoming call to the number specified in the Value
field.
Note
Transfer
When there is an active call on the phone, you can use this key feature to handle the call
differently depending on the transfer mode assigned to the DSS key.
Dependencies:
Type (Key Event)
Key Type (Transfer)
Label (key label displayed on the touch screen)
Value (the number you want to transfer to)
Usage:
When the transfer mode on DSS key is Blind Transfer, tap the Transfer key to complete
the blind transfer to the number specified in the Value field.
When the transfer mode on DSS key is Attended Transfer, tap the Transfer key to dial
out the number specified in the Value field, and then perform the attended or
semi-attended transfer.
When the transfer mode on DSS key is New Call, tap the Transfer key to place a new call
to the number specified in the Value field.
Note
Hold
You can use this key feature to place an active call on hold or retrieve a held call.
Dependencies:
Type (Key Event)
Key Type (Hold)
Label (key label displayed on the touch screen)
Usage:
1. Tap the Hold key during an active call to place the call on hold.
2. Tap the Hold key again to retrieve the held call.
Transfer mode via DSS key is configurable via web user interface at the path
Features->Transfer->Transfer Mode via Dsskey.
If the Value field is left blank, the Transfer key performs the same as the TRANSFER key or the
Transfer soft key during a call. For more information, refer to Call Transfer on page 162.
If the Value field is left blank, the Forward key performs the same as Forward when receiving
an incoming call.
Customizing Your Phone
115
DND
You can use this key feature to activate or deactivate DND. You can also use this key feature to
access the custom DND screen. For more information, refer to Do Not Disturb (DND) on page
147.
Dependencies:
Type (Key Event)
Key Type (DND)
Label (key label displayed on the touch screen)
Usage:
When DND is in phone mode:
1. Tap the DND key to activate DND.
2. Tap the DND key again to deactivate DND.
When DND is in custom mode:
1. Tap the DND key to access the custom DND screen. You can activate or deactivate DND for
one or all accounts.
Group Listening
You can use this key feature to activate the Speakerphone and Handset/Headset mode at the
same time. It is suitable for group conversations which have more than one person at one side.
You are able to speak and listen through the handset/headset, while the others nearby can only
listen through the speaker.
Dependencies:
Type (Key Event)
Key Type (Group Listening)
Label (key label displayed on the touch screen)
Usage:
1. During a call, tap the Group Listening key to activate the group listening mode.
You can then speak and listen through the handset/headset, while other people at your
side can only listen through the speaker at the same time.
2. Tap the Group Listening key again to deactivate the group listening mode.
Zero Touch
You can use this key feature to quickly configure auto provision and network parameters.
Dependencies:
Type (Key Event)
Key Type (Zero Touch)
Label (key label displayed on the touch screen)
Usage:
1. Tap the Zero Touch key to access the zero touch screen.
2. Tap the OK soft key within a few seconds.
3. Configure the network parameters in the corresponding fields.
User Guide for the SIP-T48S IP Phone
116
4. Tap the Next soft key.
5. Configure the auto provision parameters in the corresponding fields.
6. Tap the Next soft key.
The phone will reboot to update configurations.
URL
You can use this key feature to trigger the phone to send an HTTP GET request containing a
specific URL.
Dependencies:
Type (URL)
Label (key label displayed on the touch screen)
URL (the URL contained in the HTTP GET request)
Usage: Tap the URL key to trigger the phone to send an HTTP GET request containing the URL
specified in the URL field.
Phone Lock
You can use this key feature to immediately lock your phone instead of long pressing . For
more information, refer to Phone Lock on page 60.
Dependencies:
Type (Key Event)
Key Type (Phone Lock)
Label (key label displayed on the touch screen)
Usage: When the Phone Lock feature is enabled, tap the Phone Lock key to immediately lock
your phone instead of long pressing .
Directory
You can use this key feature to easily access frequently used lists. For more information, refer to
Directory on page 68.
Dependencies:
Type (Key Event)
Key Type (Directory)
Label (key label displayed on the touch screen)
Usage: Tap the Directory key to immediately access frequently used lists.
Note
Programable Keys
You can customize the soft keys, navigation keys and function keys.
To customize programable keys via web user interface:
1. Click on Dsskey->Programable Key.
The Directory key performs the same function as the Directory soft key when the phone is idle.
Customizing Your Phone
117
2. Customize specific features for these keys.
3. (Optional.) Enter the string that will appear on the touch screen in the Label field.
Label is configurable only when customizing SoftKey (1-4).
4. Click Confirm to accept the change.
Note
You can click Reset To Default to reset custom settings to defaults.
Then you can press the keys on the phone to perform the features you configured.
For example:
Switch Account Up
You can use this key feature to change the default account.
Dependencies:
Type
(Switch Account Up)
Usage: Press the Switch Account Up key to scroll up the account list to select the desired
default account.
Switch Account Down
You can use this key feature to change the default account.
Dependencies:
Type (Switch Account Down)
Usage: Press the Switch Account Down key to scroll down the account list to select the desired
default account.
Programable keys are configurable via web user interface only.
The MUTE key cannot be customized when keep mute feature is enabled. For more information,
contact your system administrator.
User Guide for the SIP-T48S IP Phone
118
Ext Keys
If EXP40 is connected to the phone, you can customize features for ext keys.
To customize ext keys via phone user interface:
1. Long press the desired ext key on EXP40.
The IP phone LCD screen will enter the user setting interface of this key.
2. Customize the specific feature for this key on the IP phone.
3. Tap the Save soft key to accept the change or to cancel.
Ext keys are configurable via web user interface at the path Dsskey->Ext Key.
For more information, refer to
Yealink EXP40 User Guide
.
Account Management
You can register one or multiple accounts on the SIP-T48S IP phone. You can also configure
each line key to associate with an account or configure multiple line keys to associate with an
account.
Account Registration
To register an account via phone user interface:
1. Tap ->Advanced (default password: admin) ->Account.
2. Tap the desired account.
3. Tap the gray box of the Activation field, and then select Enabled from the pull-down list.
4. Enter the desired value in the Label, Display Name, Register Name, User Name,
Password and SIP Server1/2 field respectively. Contact your system administrator for
more information.
5. If you use the outbound proxy servers, do the following:
1) Tap the gray box of the Outbound Status field, and then select Enabled from the
pull-down list.
2) Enter the desired value in the Outbound Proxy1/2 and Fallback Interval field
respectively. Contact your system administrator for more information.
6. Tap the Save soft key to accept the change or to cancel.
You can repeat steps 2 to 6 to register more accounts.
The following figures demonstrate single or multiple accounts registered on the phone:
Customizing Your Phone
119
Single account:
Multiple accounts:
To disable an account via phone user interface:
1. Tap ->Advanced (default password: admin) ->Account.
2. Tap the desired account.
3. Tap the gray box of the Activation field, and then select Disabled from the pull-down list.
4. Tap the Save soft key to accept the change or to cancel.
Account registration is configurable via web user interface at the path Account->Register.
Default Account
To configure the default account via phone user interface:
1. Tap ->Features->Default Account.
User Guide for the SIP-T48S IP Phone
120
2. Tap the gray box of the Default Account field, and then select the desired account from
the pull-down list.
3. Tap the Save soft key to accept the change or to cancel.
The label of the default account is displayed on the left of the status bar. The IP phone will use
this account by default when dialing out.
You can tap the label of the default account, and then tap the desired account to be the new
default account. You can also press or to select the desired account as the default
account.
Customizing Your Phone
121
Multiple Line Keys per Account
You can configure multiple line keys to associate with an account. This enhances call
visualization and simplifies call handling.
If this is the case, the touch screen will resemble the following figure:
Incoming calls to this account will be distributed evenly among the available line keys. Outgoing
calls will be distributed similarly.
Your phone can be configured to have a combination of accounts with a single line key and
accounts with multiple line keys.
Dial Plan
Dial plan is a string of characters that governs the way your SIP-T48S IP phone processes the
inputs received from your phone keypad.
The SIP-T48S IP phone supports the following dial plan features:
Replace Rule
Dial Now
User Guide for the SIP-T48S IP Phone
122
Area Code
Block Out
The basic expression syntax you need to know:
.
The dot "." can be used as a placeholder or multiple placeholders for any
character. Example:
"12." would match "123", "1234", "12345", "12abc", etc.
x
An "x" can be used as a placeholder for any character. Example:
"12x" would match "121", "122", "123", "12a", etc.
-
Numeric ranges are allowed within the brackets: Digit “-” Digit. Example:
“[5-7]” would match the number”5”, ”6”or ”7”.
[]
The square brackets "[]" can be used as a placeholder for a single character
which matches any of a set of characters. Example:
"91[5-7]1234" would match "9151234", "9161234", "9171234".
()
The parentheses "( )" can be used to group together patterns, for instance, to
logically combine two or more patterns. Example:
"([1-9])([2-7])3" would match "923", "153", "773", etc.
$
The “$” should be followed by the sequence number of a parenthesis. The “$”
plus the sequence number means the whole character or characters placed in
the parenthesis. The number directs to the right parenthesis when there are
more than one. Example:
A replace rule configuration, Prefix: "001(xxx)45(xx)", Replace: "9001$145$2".
When you dial out "0012354599" on your phone, the IP phone will replace the
number with "90012354599". “$1” means 3 digits in the first parenthesis, that
is, “235”. “$2” means 2 digits in the second parenthesis, that is, “99”.
Note
Replace Rule
You can configure one or more replace rules (up to 100) to remove the specified string and
replace it with another string. You can configure a pattern with wildcards (refer to the expression
syntax in the table above), so that any string that matches the pattern will be replaced. This
feature is convenient for you to dial out a long number. For example, a replace rule is configured
as “prefix: 1” and “replace: 1234”, when you try to dial out the number “1234”, you just need to
enter “1” on the phone and then tap Send.
To add a replace rule via web user interface:
1. Click on Settings->Dial Plan->Replace Rule.
The IP phone supports a new dial plan mechanism – digit map. Digit maps are defined by a single
string or a list of strings. If a number you dial matches any string of a digit map, the call is
automatically placed.
Note that if digit map feature is enabled, the old dial plan rules (described in this chapter) will be
ignored. For more information, contact your system administrator.
Customizing Your Phone
123
2. Enter the string (e.g., 1) in the Prefix field.
3. Enter the string (e.g., 1234) in the Replace field.
4. Enter the desired line ID in the Account field or leave it blank.
5. Click Add to add the replace rule.
When you enter the number “1” using the keypad and then tap Send, the phone will dial out
“1234” instead.
Note
To edit a replace rule via web user interface:
1. Click on Settings->Dial Plan->Replace Rule.
2. Select the desired replace rule by checking the checkbox.
3. Edit the values in the Prefix and Replace fields.
4. Enter the desired line ID in the Account field or leave it blank.
5. Click Edit to accept the change.
To delete one or more replace rules via web user interface:
1. Click on Settings->Dial Plan->Replace Rule.
2. Select one or more replace rules by checking the checkbox(es).
3. Click Del to delete the replace rule(s).
Dial Now
You can configure one or more dial now rules (up to 100) on your phone. When the dialed
The valid values for the Account field can be one or more digits among 1-16. Every two digits
must be separated by a comma. For example, when you enter the value “1, 2” in the Account
field, this replace rule will apply to account 1 and account 2.
If you leave the Account field blank or enter 0, the replace rule will apply to all accounts.
User Guide for the SIP-T48S IP Phone
124
number matches the dial now string, the number will be dialed out automatically. For example, a
dial now rule is configured as "2xx", any entered three-digit string beginning with 2 will then be
dialed out automatically on the phone.
To add a dial now rule via web user interface:
1. Click on Settings->Dial Plan->Dial Now.
2. Enter the desired value (e.g., 2xx) in the Rule field.
3. Enter the desired line ID in the Account field or leave it blank.
For more information on the valid values for the Account field, refer to Replace Rule on
page 122.
4. Click Add to add the dial now rule.
When you enter the number “234” using the keypad, the phone will dial out “234”
automatically without the pressing of any key.
Note
Time Out for Dial Now Rule
You can configure the delay time for dial now rules. That is, you can configure your phone to
automatically dial out the phone number which matches a dial now rule, after the designated
delay time.
To configure the delay time for dial now rule via web user interface:
1. Click on Features->General Information.
2. Enter the time between 0 and 14 (seconds) in the Time Out for Dial Now Rule field.
You can also edit or delete the dial now rule, refer to Replace Rule on page 122 for more
information.
Customizing Your Phone
125
The default value is “1”.
3. Click Confirm to accept the change.
Note
Area Code
Area codes are also known as Numbering Plan Areas (NPAs). They usually indicate geographical
areas in a country. This feature is necessary when dialing a phone number outside the code area.
For example, an area code is configured as "Code: 0592, Min Length: 1, Max Length: 15". When
you dial out the number "56789" (the length of the number is between 1 and 15), the phone will
add the area code and dial out the number "059256789". You can only configure one area code
rule on your phone.
To configure the area code via web user interface:
1. Click on Settings->Dial Plan->Area Code.
2. Enter the desired values in the Code, Min Length (1-15) and Max Length (1-15) fields.
3. Enter the desired line ID in the Account field or leave it blank.
Time out for dial now rule is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
126
For more information on the valid values for the Account field, refer to Replace Rule on
page 122.
4. Click Confirm to accept the change.
Note
Block Out
You can block some specific numbers (up to 10) from being dialed on your phone. When you
dial a block out number on your phone, the dialing will fail and the touch screen will prompt
“Forbidden Number”.
To add a block out number via web user interface:
1. Click on Settings->Dial Plan->Block Out.
2. Enter the desired value in the BlockOut NumberX field.
3. Enter the desired line ID in the Account field or leave it blank.
For more information on the valid values for the Account field, refer to Replace Rule on
page 122.
4. Click Confirm to add the block out number.
Note
The default value of minimum and maximum length is 1 and 15 respectively.
Block out number is configurable via web user interface only.
Customizing Your Phone
127
Emergency Number
Public telephone networks in countries around the world have a single emergency telephone
number (emergency services number), that allows a caller to contact local emergency services
for assistance when necessary. The emergency telephone number may differ from country to
country. It is typically a three-digit number so that it can be easily remembered and dialed
quickly. Some countries have a different emergency number for each of the different emergency
services.
You can specify the emergency telephone numbers on the IP phone for contacting the
emergency services in an emergency situation. You can dial these numbers when the phone is
locked. For more information on phone lock, refer to Phone Lock on page 60.
Note
To specify emergency numbers via web user interface:
1. Click on Features->Phone Lock.
2. Enter the emergency number in the Emergency field.
For multiple emergency numbers, enter a comma between every two numbers. The default
emergency numbers are 112, 911 and 110.
3. Click Confirm to accept the change.
Note
Contact your local phone service provider for available emergency numbers in your area.
The IP phone also supports the emergency dialplan, which allows users to make emergency calls
if the phone is locked or unregistered. For more information, contact your system administrator.
Emergency number is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
128
Live Dialpad
You can enable live dialpad feature on the SIP-T48S IP phone, which enables the IP phone to
automatically dial out a phone number without pressing the send key. You can also configure a
delay, and then the phone will dial out the phone number automatically after the designated
period of time.
To enable the live dialpad via web user interface:
1. Click on Settings->Preference.
2. Select Enabled from the pull-down list of Live Dialpad.
3. Enter the desired delay time in the Inter Digit Time(1~14s) field.
The default delay time is 4s.
4. Click Confirm to accept the change.
Note
Hotline
You can dial a hotline number immediately upon lifting the handset, pressing the Speakerphone
key or tapping the line key. You can also configure a delay, and then the phone will dial out the
hotline number automatically after a designated period of time.
To configure the hotline number via phone user interface:
1. Tap ->Features->Hot Line.
2. Enter the desired number in the Hotline Number field.
Live dialpad is configurable via web user interface only.
Customizing Your Phone
129
3. Enter the desired delay time in the Hotline Delay field.
The valid values range from 0 to 10 (seconds) and the default value is “4”.
4. Tap the Save soft key to accept the change or to cancel.
Hotline is configurable via web user interface at the path Features->General Information.
User Guide for the SIP-T48S IP Phone
130
Basic Call Features
131
Basic Call Features
The SIP-T48S IP phone is designed to be easily used like a regular phone on a public switched
telephone network (PSTN). You can place calls, answer calls, transfer a call to someone else, or
conduct a conference call.
This chapter provides basic operating instructions for the SIP-T48S IP phone. Topics include:
Placing Calls
Answering Calls
Ending Calls
Redialing Numbers
Recent Call In Dialing
Auto Answer
Auto Redial
Call Completion
Recall
Call Mute
Call Hold/Resume
Do Not Disturb (DND)
Call Forward
Call Transfer
Call Waiting
Conference
Call Park/Retrieve
Call Pickup
Anonymous Call
Anonymous Call Rejection
If you require additional information or assistance with your new phone, contact your system
administrator.
User Guide for the SIP-T48S IP Phone
132
Placing Calls
You can place a call in one of three ways using your SIP-T48S IP phone:
Using the handset
Using the speakerphone
Using the headset
You can also dial the number first, and then choose the way you want to speak to the other
party.
You can also dial an entry/contact from call history, local directory or remote phone book. For
more information, refer to Contact Management on page 68 and Call History Management on
page 91.
During a call, you can alternate between Speakerphone, Headset, and Handset modes by
pressing the Speakerphone key, the HEADSET key, or by picking up the handset.
The call duration of the call and far-site’s information (name or phone number) are visible on the
touch screen. In the figure below, the call to “1039” (the phone number: 1039) has lasted 1
second.
To place a call using the handset:
1. Pick up the handset.
2. Enter the desired number using the phone keypad.
Basic Call Features
133
You can also enter the number using the on-screen keypad.
3. Press , , or tap Send.
The # key is configured as a send key by default. You can also set the * key as the send key, or
set neither. For more information, refer to the Key As Send on page 59.
You can also tap the History soft key or the Directory soft key to search for an entry or contact
after picking up the handset, and then tap the desired entry or contact to place a call.
Note
To place a call using the hands-free (speakerphone) mode:
Do one of the following:
- With the handset on-hook, press or tap the line key to obtain a dial tone.
Enter the desired number.
Press , or tap Send.
- With the handset on-hook, enter the desired number.
Press , , or tap Send.
To place a call using the headset:
Do one of the following:
- With the optional headset connected, press to activate the headset mode.
Tap the line key to obtain a dial tone.
Enter the desired number.
Press , , or tap Send.
You can also dial using the SIP URI or IP address. To obtain the IP address of a phone, press the
OK key when the phone is idle. The maximum SIP URI or IP address length is 32 characters. For
example, SIP URI: 3606@sip.com, IP: 192.168.1.15 (192*168*1*15).
Your phone may not support direct IP dialing. Contact your system administrator for more
information.
User Guide for the SIP-T48S IP Phone
134
- With the optional headset connected, press to activate the headset mode.
Enter the desired number.
Press , , or tap Send.
Note
The SIP-T48S IP phone can handle multiple calls at a time. However, only one active call (the call
that has audio associated with it) can be in progress at any time. The SIP-T48S IP phone can
handle a maximum of 50 calls at one time.
To place multiple calls:
You can have more than one call on your SIP-T48S IP phone. To place a new call during an active
call, do one of the following:
- Tap the line key. The active call is placed on hold.
Enter the desired number.
Press , , or tap Send.
- Press or tap the Hold soft key to place the original call on hold.
Tap the New Call soft key.
Enter the desired number.
Press , , or tap Send.
You can tap the desired call, and then tap the Resume soft key to retrieve it.
Note
Answering Calls
When you are not in another call, you can answer a call in one of three ways:
Using the handset
Using the speakerphone
Using the headset
Note
You can reject incoming calls by pressing the X key or tapping the Reject soft key to stop the
phone from playing ring tone. You can also activate the Do Not Disturb mode to reject the
incoming calls without ringing on your phone. For more information, refer to Do Not Disturb
(DND) on page 147.
You can forward incoming calls to someone else by tapping the Forward soft key. For more
information, refer to Call Forward on page 152.
To permanently use the headset mode, refer to Headset Use on page 98.
If multiple accounts are registered on the phone, you can first tap the desired line key on the idle
screen or tap the desired line from the status bar on the dialing screen, and then you can use the
selected account to place a call.
Basic Call Features
135
Answering When Not in Another Call
Call duration and destination will always appear on the touch screen for the active call.
To answer a call using the handset:
1. Pick up the handset.
To answer a call using the hands-free (speakerphone) mode:
Do one of the following:
- Press .
- With the handset on-hook and the headset mode deactivated, tap the Answer soft key.
- With the handset on-hook and the headset mode deactivated, tap the line key with the
illuminating solid green icon indicator.
To answer a call using the headset:
Do one of the following:
- Press .
- With the headset mode activated, tap the Answer soft key.
- With the headset mode activated, tap the line key with the illuminating solid green icon
indicator.
Answering When in Another Call
If you have an active call, and an incoming call arrives on the phone. The incoming call
information is displayed on the touch screen.
1. Press or tap the Answer soft key.
The incoming call is answered and the original call is placed on hold.
User Guide for the SIP-T48S IP Phone
136
Ending Calls
To end a call:
Do one of the following:
- If you are using the handset, press , the End Call soft key or hang up the handset.
- If you are using the headset, press or the End Call soft key.
- If you are using the speakerphone, press , or the End Call soft key.
Note
Redialing Numbers
To redial the last dialed number from your phone:
1. Press twice.
A call to your last dialed number is attempted.
To redial a previously dialed number from your phone:
1. Press when the phone is idle.
2. Tap the desired entry from the placed calls list.
Recent Call In Dialing
To view the placed calls list when the phone is on the dialing interface, you should enable recent
call in dialing in advance.
To enable recent call in dialing via web user interface:
1. Click on Directory->Setting.
To end a call placed on hold, you can tap the End Call soft key to end the call directly, or tap the
Resume soft key to resume the call before ending it.
Basic Call Features
137
2. Select Enabled from the pull-down list of Recent Call In Dialing.
3. Click Confirm to accept the change.
Note
To view placed calls list when the phone is on the dialing interface:
1. Pick up the handset, press the Speakerphone key or tap the line key.
The touch screen displays the placed calls list.
You can tap or to scroll through placed calls page by page.
Recent call in dialing is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
138
You can also enter a few continuous characters of the contact name or continuous numbers
of the contact number (office, mobile or other number) to search from placed calls list.
Auto Answer
You can use auto answer feature to automatically answer an incoming call on a line. Auto
answer is configurable on a per-line basis.
You can choose to mute the local microphone when an incoming call is answered automatically.
For more information, refer to
User Guide for the SIP-T48S IP Phone
140
The icon appears on the touch screen only when the auto answer feature is enabled
for the default account.
Auto answer is configurable via web user interface at the path Account->Basic.
Note
Auto Redial
You can enable auto redial to automatically redial a phone number when the called party is busy.
You can also configure the number of auto redial attempts and the time to wait between redial
attempts.
To configure auto redial via phone user interface:
1. Tap ->Features->Auto Redial.
2. Tap the On radio box of the Auto Redial field.
3. Enter the desired time (in seconds) in the Redial Interval field.
The default value is “10”.
4. Enter the desired number of redial attempts in the Redial Times field.
Auto answer only takes effect when there is no other call in progress on the phone. If there is a
call in progress, the second incoming call cannot be automatically answered after ending the
current call by default. If you want to make the phone automatically answer the incoming call
after ending all calls, contact your system administrator for more information.
Basic Call Features
141
The default value is “10”.
5. Tap the Save soft key to accept the change or to cancel.
Auto redial is configurable via web user interface at the path Features->General Information.
To use auto redial:
When the called party is busy, the following prompt will appear on the touch screen of the
phone:
1. Tap the OK soft key to activate auto redial.
User Guide for the SIP-T48S IP Phone
142
The touch screen prompts the following:
2. Wait for the designated period of time or tap the OK soft key to redial the phone number.
The phone will retry as many times as configured until the called party is idle.
Call Completion
You can use call completion to notify the caller who failed to reach a desired party when the
party becomes available to receive a call.
To enable call completion via phone user interface:
1. Tap ->Features->Call Completion.
2. Tap the On radio box of the Call Completion field.
3. Tap the Save soft key to accept the change or to cancel.
Call completion is configurable via web user interface at the path Features->General
Information.
Basic Call Features
143
To use call completion:
When the called party is busy, the following prompt will appear on the touch screen of the
phone:
1. Tap OK, the phone will then returns to the idle screen and call completion will be activated.
When the called party becomes idle, the following prompt will appear on the touch screen of
the phone:
1. Tap OK to redial the number.
Note
Recall
You can tap a recall key to place a call back to the last incoming call.
Call completion is not available on all servers. For more information, contact your system
administrator.
User Guide for the SIP-T48S IP Phone
144
To configure a recall key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4. Tap the gray box of the Key Type field, and then select ReCall from the pull-down list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Tap the Save soft key to accept the change or to cancel.
Recall key is configurable via web user interface at the path Dsskey->Line key.
Call Mute
You can mute the microphone of the active audio device during an active call so that the other
party cannot hear you. You can also mute the microphone while dialing so that the other party
cannot hear you when the call is set up. It helps prevent the other party from hearing the
informal discussion when auto answer is enabled on his/her phone.
Call mute applies to all modes (Handset, Headset and Speakerphone).
Basic Call Features
145
Keep Mute
Normally, the mute feature is deactivated when the active call ends. Keep mute feature enables
you to make the mute state of your phone persist across calls. This feature should be
pre-configured by your system administrator. When keep mute is enabled and you press the
MUTE key, the phone stays in the mute state until you un-mute the microphone or until the
phone restarts. It helps prevent the other party from hearing the noise coming from your room
when auto answer is enabled on your phone. When you mute the phone in an idle state or any
other states, the mute key LED illuminates solid red and the icon appears on the status bar.
Muting a Call
To mute a call:
1. Press during an active call.
The mute key LED illuminates solid red. The touch screen indicates that the call is now
muted.
To un-mute a call:
1. Press again to un-mute the call.
User Guide for the SIP-T48S IP Phone
146
The mute key LED goes out.
Muting While Dialing
To mute the microphone while dialing:
1. Press on the pre-dialing, dialing or calling screen.
The mute key LED illuminates solid red. The call is muted automatically when setting up
successfully.
To un-mute the microphone while dialing:
1. Press again on the pre-dialing, dialing or calling screen.
Note
Call Hold/Resume
You can place an active call on hold. Only one active call can be in progress at any time. Other
calls can be made and received while placing the original call on hold. When you place a call on
hold, your IP PBX may play music to the other party while waiting.
To place a call on hold:
1. Press or tap the Hold soft key during a call.
The touch screen indicates that the call is on hold.
Note
The phone will beep softly every 30 seconds to remind you that you still have a call on hold. The
phone ignores engaged audio device (handset or headset) and switches to Speakerphone to play
the hold tone by default. The Speakerphone key will light up for 1 second.
You can also mute the microphone when the IP phone is ringing.
Basic Call Features
147
To resume a held call:
1. Press or tap the Resume soft key.
Multiple Calls on Hold:
If multiple calls are placed on hold, do one of the following:
- Tap the desired call, and then press or tap the Resume soft key to retrieve it.
- Tap the desired call, and then tap the corresponding line key to retrieve it.
Do Not Disturb (DND)
You can use DND to reject incoming calls automatically on the phone. The prompt message “n
New Missed Call(s)” (“n” indicates the number of missed calls, e.g., 1 New Missed Call(s)) will
appear on the touch screen, and callers will receive a busy message. All calls you receive while
DND is activated are logged to your missed calls list.
Note
The prompt message will display only if Missed Call Log for the line is enabled. Missed call log is
configurable via web user interface at the path Account->Basic.
You cannot activate or deactivate DND when DND feature is disabled. Contact your system
administrator for more information.
User Guide for the SIP-T48S IP Phone
148
When DND feature is activated, the IP phone supports displaying a large DND icon on the idle
screen. For more information, contact your system administrator.
You can activate/deactivate DND for the phone system, or you can customize DND for each or
all accounts.
There are two DND modes:
Phone (default): DND is effective for the phone system.
Custom: DND can be configured for each or all accounts.
To configure the DND mode via web user interface:
1. Click on Features->Forward&DND.
2. In the DND block, mark the desired radio box in the Mode field.
3. Click Confirm to accept the change.
Note
DND mode is configurable via web user interface only.
Basic Call Features
149
To activate DND in phone mode:
1. Tap .
The icon appears on the status bar.
Note
To activate DND in custom mode:
1. Tap .
The touch screen displays a list of accounts registered on the phone.
2. Tap the desired account.
3. Tap the On radio box of the DND Status field.
4. (Optional.) Enter the DND on code or off code respectively in the On Code or Off Code
field.
If the on code or off code is configured, the IP phone will send the corresponding code to
activate or deactivate DND on the server. It is not available on all servers.
When DND and busy forward are activated in phone mode, calls will be sent to the configured
destination number. For more information on busy forward, refer to Call Forward on page 152.
User Guide for the SIP-T48S IP Phone
150
5. Tap the Save soft key to accept the change.
If you want to activate DND for all accounts, you can press the All On soft key.
If you activate DND for the default account, the associated line icon will change to , and the
icon will appear on the status bar.
If you activate DND for the non-default account, only the associated line icon will change
to .
Basic Call Features
151
If you activate DND for all accounts, all line icons will change to and the icon will
appear on the status bar.
Note
You can receive incoming calls from authorized numbers when DND is activated.
To configure the DND authorized numbers via web user interface:
1. Click on Features->Forward&DND.
2. Select Enabled from the pull-down list of DND Emergency.
3. Enter the numbers in the DND Authorized Numbers field.
For multiple numbers, enter a comma between every two numbers.
4. Click Confirm to accept the change.
When DND and busy forward are activated for a specific account, calls from the specific account
will be sent to the configured destination number. For more information on busy forward, refer
to Call Forward on page152.
User Guide for the SIP-T48S IP Phone
152
When DND is activated on the phone, the phone can still receive incoming calls from the
numbers specified in the DND Authorized Numbers field.
Note
To deactivate DND in phone mode:
1. Tap the DND soft key when the phone is idle.
To deactivate DND in custom mode:
1. Tap the DND soft key when the phone is idle.
2. Tap the desired account.
3. Tap the Off radio box of the DND Status field.
4. Tap the Save soft key to accept the change.
Call Forward
You can configure your phone to forward incoming calls to another party (static forwarding).
You can also forward calls while your phone is ringing (dynamic forwarding).
Note
Static Forwarding
Three types of static forwarding:
Always Forward: Incoming calls are immediately forwarded.
Busy Forward: Incoming calls are immediately forwarded if the phone is busy.
No Answer Forward: Incoming calls are forwarded if not answered after a period of time.
You can activate/deactivate call forward for the phone system, or you can customize call forward
for each or all accounts.
There are two call forward modes:
Phone (default): Call forward is effective for the phone system.
Custom: Call forward can be configured for each or all accounts.
DND authorized number is configurable via web user interface only.
When the phone misses a call, a prompt window will pop up by default. If you want to disable the
feature, contact your system administrator for more information.
When the phone forwards a call, a prompt window will pop up by default. If you want to disable
the feature, contact your system administrator for more information.
You cannot activate or deactivate call forward when call forward feature is disabled. Contact your
system administrator for more information.
Basic Call Features
153
To configure the call forward mode via web user interface:
1. Click on Features->Forward&DND.
2. In the Forward block, mark the desired radio box in the Mode field.
3. Click Confirm to accept the change.
Note
To activate call forward in phone mode:
1. Tap ->Features->Call Forward or press when the phone is idle.
2. Tap the desired forwarding type.
3. Depending on your selection:
a) If you tap Always Forward:
1) Tap the On radio box of the Always Forward field.
2) Enter the destination number you want to forward all incoming calls to in the
Forward to field.
Call forward mode is configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
154
3) (Optional.) Enter the always forward on code or off code respectively in the On
Code or Off Code field.
b) If you tap Busy Forward:
1) Tap the On radio box of the Busy Forward field.
2) Enter the destination number you want to forward incoming calls to when the
phone is busy in the Forward to field.
3) (Optional.) Enter the busy forward on code or off code respectively in the On
Code or Off Code field.
c) If you tap No Answer Forward:
1) Tap the On radio box of the No Answer Forward field.
2) Enter the destination number you want to forward unanswered incoming calls to
in the Forward to field.
3) Tap the gray box of the After Ring Time field, and then select the desired ring
time to wait before forwarding from the pull-down list.
The default ring time is 12 seconds.
Basic Call Features
155
4) (Optional.) Enter the no answer forward on code or off code respectively in the
On Code or Off Code field.
4. Tap the Save soft key to accept the change.
The icon on the idle screen indicates that the call forward is activated.
To activate call forward in custom mode:
1. Tap ->Features->Call Forward or press when the phone is idle.
2. Tap the desired account.
3. Tap the desired forwarding type.
4. Depending on your selection:
a) If you tap Always Forward:
1) Tap the On radio box of the Always Forward field.
2) Enter the destination number you want to forward all incoming calls to in the
Forward to field.
User Guide for the SIP-T48S IP Phone
156
3) (Optional.) Enter the always forward on code or off code respectively in the On
Code or Off Code field.
You can also activate always forward for all accounts. Do the following:
1) Tap the All Lines soft key.
The touch screen prompts “Copy to all lines?”.
2) Tap OK to accept the change or Cancel to cancel.
b) If you select Busy Forward:
1) Tap the On radio box of the Busy Forward field.
2) Enter the destination number you want to forward incoming calls to when the
phone is busy in the Forward to field.
Basic Call Features
157
3) (Optional.) Enter the busy forward on code or off code respectively in the On
Code or Off Code field.
You can also activate busy forward for all accounts. Do the following:
1) Tap the All Lines soft key.
The touch screen prompts “Copy to all lines?”.
2) Tap OK to accept the change or Cancel to cancel.
c) If you select No Answer Forward:
1) Tap the On radio box of the No Answer Forward field.
2) Enter the destination number you want to forward unanswered incoming calls to
in the Forward to field.
3) Tap the gray box of the After Ring Time field, and then select the desired ring
time to wait before forwarding from the pull-down list.
The default ring time is 12 seconds.
User Guide for the SIP-T48S IP Phone
158
4) (Optional.) Enter the no answer forward on code or off code respectively in the
On Code or Off Code field.
You can also activate no answer forward for all accounts. Do the following:
1) Tap the All Lines soft key.
The touch screen prompts “Copy to all lines?”.
2) Tap OK to accept the change or Cancel to cancel.
5. Tap the Save soft key to accept the change.
Basic Call Features
159
If you activate call forward for the default account, the associated line icon will change to ,
and the icon will appear on the status bar.
If you activate call forward for the non-default account, only the associated line icon will change
to .
If you activate call forward for all accounts, all line icons will change to , and the icon will
appear on the status bar.
User Guide for the SIP-T48S IP Phone
160
If the forward on code or off code is configured, the IP phone sends the corresponding code to
the server when a certain action takes place. For example, if you set the Always Forward on code
to be *71 (may vary on different servers), and the target number to be 1234. When you activate
Always Forward on the IP phone, the IP phone sends *711234 to the server, and then the server
will activate Always Forward feature on the server side, hence being able to get the right status
of the extension.
Call forward is configurable via web user interface at the path Features->Forward&DND.
Note
To configure the forward authorized numbers via web user interface:
1. Click on Features->Forward&DND.
2. Select Enabled from the pull-down list of Forward Emergency.
3. Enter the numbers in the Forward Authorized Numbers field.
For multiple numbers, enter a comma between every two numbers.
4. Click Confirm to accept the change.
When call forward is activated on the phone, the phone cannot forward incoming calls from the
numbers specified in the Forward Authorized Numbers field.
Note
You can also enter the SIP URL or IP address in the Forward to field. For more information on
using the SIP URL or IP address, refer to Placing Calls on page 132.
Call forward is local to the phone, and may be overridden by the server settings. Call forward on
code or off code may be different among servers. For more information, contact your system
administrator.
Forward authorized number is configurable via web user interface only.
Basic Call Features
161
To deactivate call forward in phone mode:
Do one of the following:
- Press when the phone is idle.
- Tap ->Features->Call Forward.
Tap the desired forwarding type.
Tap the Off radio box.
Tap the Save soft key to accept the change.
To deactivate call forward in custom mode:
1. Tap ->Features->Call Forward or press when the phone is idle.
The touch screen displays a list of accounts registered on the phone.
2. Tap the desired account.
3. Tap he desired forwarding type.
4. Tap the Off radio box.
If you want to deactivate call forward for all accounts, tap the All Lines soft key.
5. Tap the Save soft key to accept the change.
Dynamic Forwarding
You can manually forward a call to another number while your phone rings.
To forward an incoming call to another party:
1. When the phone is ringing, tap the Forward soft key.
2. Enter the number you want to forward the incoming call to.
3. Press , , or tap Forward.
The touch screen prompts a call forward message.
User Guide for the SIP-T48S IP Phone
162
Call Transfer
You can transfer a call to another party during a call in one of three ways:
Blind Transfer: Transfer a call directly to another party without consulting.
Semi-Attended Transfer: Transfer a call when the target phone is ringing.
Attended Transfer (Consultative Transfer): Transfer a call with prior consulting.
Blind Transfer
Before performing a blind transfer (except you use dial number method), make sure that the
transfer mode on DSS key is configured as Blind Transfer. For more information on how to
configure it, refer to Configuring Transfer Mode on DSS Key on page 188.
To perform a blind transfer during a call:
1. Press or tap the Transfer soft key during a call.
2. You can do one of the following:
- Enter the number you want to transfer the call to.
Press or tap Transfer to complete the transfer.
If you are using a handset, the transfer can be completed by hanging up the handset.
- Tap the Directory soft key, and then tap All Contacts. Search for the contact and tap
the desired contact to complete the transfer.
- Tap the Directory soft key, and then tap Remote Phone Book. Search for the contact
and tap the desired contact to complete the transfer. (Remote phone book should be
configured in advance. Refer to Remote Phone Book on page 90 for more
information.).
- Tap the History soft key, and then tap the desired list. Search for the contact and tap
the desired contact to complete the transfer.
Basic Call Features
163
To perform a blind transfer to exist call:
1. Press or tap the Transfer soft key during a call.
2. Tap the desired hold call you want to transfer the call to on the left side.
The call is then connected to the call to which you are transferring.
Semi-attended Transfer
Before performing a semi-attended transfer (except you use dial number method), make sure
that the transfer mode on DSS key is configured as New Call or Attended Transfer. For more
information on how to configure it, refer to Configuring Transfer Mode on DSS Key on page
188.
To perform a semi-attended transfer:
1. Press or tap the Transfer soft key during a call.
2. Do one of the following:
- Enter the number you want to transfer the call to.
Press or to dial out.
- Tap the Directory soft key, and then tap All Contacts. Search for the contact and tap
the desired contact to dial out.
- Tap the Directory soft key, and then tap Remote Phone Book. Search for the contact
and tap the desired contact to dial out. (Remote phone book should be configured in
advance. Refer to Remote Phone Book on page 90 for more information.)
- Tap the History soft key, and then tap the desired list. Tap the desired entry to dial
out.
3. Press or tap Transfer to complete the transfer when receiving ringback.
If you are using a handset, the transfer can be completed by hanging up the handset.
User Guide for the SIP-T48S IP Phone
164
Attended Transfer
Before performing an attended transfer (except you use dial number method), make sure that
the transfer mode on DSS key is configured as New Call or Attended Transfer. For more
information on how to configure it, refer to Configuring Transfer Mode on DSS Key on page
188.
To perform an attended transfer:
1. Press or tap the Transfer soft key during a call.
2. Do one of the following:
- Enter the number you want to transfer the call to.
Press or to dial out.
- Tap the Directory soft key, and then tap All Contacts. Search for the contact and tap
the desired contact to dial out.
- Tap the Directory soft key, and then tap Remote Phone Book. Search for the contact
and tap the desired contact to dial out. (Remote phone book should be configured in
advance. Refer to Remote Phone Book on page 90 for more information.)
- Tap the History soft key, and then tap the desired list. Tap the desired entry to dial
out.
3. After the party answers the call, press or tap Transfer to complete the transfer.
If you are using a handset, the transfer can be completed by hanging up the handset.
Call Waiting
You can enable or disable call waiting on the phone. If call waiting is enabled, you can receive
another call when there is already an active call on the phone. Otherwise, another incoming call
is automatically rejected by the phone with a busy message when there is an active call on the
phone. You can also enable or disable the phone to play a warning tone when receiving another
call.
To configure call waiting via phone user interface:
1. Tap ->Features->Call Waiting.
2. Tap the On radio box of the Call Waiting field.
3. Tap the On radio box of the Play Tone field.
4. (Optional.) Enter the call waiting on code or off code respectively in the On Code or Off
Code field.
Basic Call Features
165
If on code or off code is configured, the IP phone will send the corresponding code to
activate or deactivate call waiting on the server. It is not available on all servers.
5. Tap the Save soft key to accept the change or to cancel
Call waiting is configurable via web user interface at the path Features->General Information.
Note
Conference
You can use the SIP-T48S IP phone to create a conference with other two parties using the
phone’s local conference or create a conference with multiple participants which is called
network conference.
Note
Local Conference
The SIP-T48S IP phone supports up to 3 parties (including yourself) in a conference call. This is
the default method of conference called Local Conference. You can create a conference
between an active call and a call on hold at any time by tapping the Conference soft key.
Note
To set up a local conference call:
1. Place a call to the first party.
Network conference is not available on all servers. For more information, contact your system
administrator.
To set up a local conference call, make sure local conference feature is enabled. For more
information, contact your system administrator.
If on code or off code is not configured, the call waiting may not take effect. It depends on your
server. Contact your server administrator for more information.
User Guide for the SIP-T48S IP Phone
166
2. When the first party answers the call, tap the Conference soft key to place a new call.
The active call is placed on hold.
3. Enter the number of the second party, and then press , , or tap Conference.
4. When the second party answers the call, tap the Conference soft key again to join all
parties in the conference.
To join two calls in a conference:
1. Place two calls using two different accounts on the phone (for example, place the first call
using account 1, and then place the second call using account 2).
2. Tap the desired call for conference and ensure that the call is active (for example, tap the
call on account 1).
3. Tap the Conference soft key to join the two calls in the conference on the selected account.
During the conference call, you can do the following actions:
- Press or tap the Hold soft key to place the conference call on hold.
- Tap the Split soft key to split the conference call into two individual calls on hold.
- Tap to remove the desired party from the conference call.
Basic Call Features
167
The touch screen prompts “Are you sure to remove XX”.
Tap OK to remove the party.
- Press to mute the conference call, all other participants can hear each other, but they
cannot hear you.
- Tap to mute the party. The muted party can hear everyone, but no one can hear the
muted party. The icon changes to .
- Tap the End Call soft key to drop the conference call.
Network Conference
You can use network conference feature on the SIP-T48S IP phone to conduct a conference with
multiple participants.
This feature allows you to perform the following:
Join two calls together into a conference call.
Invite another party into an active conference call.
To use this feature, contact your system administrator for the network conference URI in
advance.
To configure network conference via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Select Network Conference from the pull-down list of Conference Type.
4. Enter the conference URI (e.g., conference@example.com) in the Conference URI field.
User Guide for the SIP-T48S IP Phone
168
5. Click Confirm to accept the change.
Note
To set up a network conference call:
1. Place a call to the first party.
2. Tap the Conference soft key to place a new call.
The active call is placed on hold.
3. Enter the number of the second party and then press , , or tap the Send soft key.
4. When the second party answers the call, tap the Conference soft key to add the second
party to the conference.
5. Tap the Conference soft key to place a new call.
The conference call is placed on hold.
6. Enter the number of the new party and then press , , or tap the Send soft key.
7. When the new party answers the call, tap the Conference soft key to add the new party to
the conference.
8. Repeat steps 5 to 7 until you have added all intended parties.
The procedures to set up a network conference call on specific servers may be different from
introduced above. Contact your system administrator for more information.
Call Park/Retrieve
You can use call park feature to place a call on hold, and then retrieve the call from another
phone in the system (for example, a phone in another office or conference room). You can park
an active call by tapping the Park soft key or pressing call park key (if configured) on the phone.
If the call is parked successfully, there is a voice prompt confirming that the call was parked. You
can retrieve the parked call by pressing the Retrieve soft key or the retrieve park key (if
configured). If the parked call is not retrieved within a period of time defined by the system, the
phone performing call park will receive the call back.
Note
The IP phone supports call park feature under the following modes:
FAC mode: park the call to the local extension or a desired extension through dialing the
park code.
Transfer mode: park the call to shared parking lot through performing a blind transfer to
a call park number (call park code).
You can also configure a call park key and retrieve park key.
Network conference is configurable via web user interface only.
Call park is not available on all servers. Contact your system administrator for more information.
Basic Call Features
169
To configure a call park key via phone user interface:
1. Tap Menu->Features->DSS Keys.
2. Tap the desired DSS key.
3. Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4. Tap the gray box of the Key Type field, and then select Call Park from the pull-down list.
5. Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
6. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
7. Enter the call park code in the Value field.
8. Tap the Save soft key to accept the change or the to cancel.
If the call park code is already configured for the Park soft key, you don’t need to configure it
when configuring a call park key.
To configure a retrieve park key via phone user interface:
1. Tap Menu->Features->DSS Keys.
2. Tap the desired DSS key.
3. Tap the gray box of the Type field, and then select Retrieve Park from the pull-down list.
User Guide for the SIP-T48S IP Phone
170
4. Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
5. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
6. Enter the park retrieve code in the Value field.
7. Tap the Save soft key to accept the change or the to cancel.
If the park retrieve code is already configured for the Retrieve key, you don’t need to configure
it when configuring a retrieve park key.
Call park key and retrieve park key are configurable via web user interface at the path
Dsskey->Line Key.
Note
FAC Mode
To configure call park feature in FAC mode via web user interface:
1. Click on Features->Call Pickup.
2. Select FAC from the pull-down list of Call Park Mode.
3. Select Enabled from the pull-down list of Call Park.
If Enabled is selected, the Park soft key will display on the LCD screen during a call, and the
Retrieve soft key will display on the dialing screen.
4. (Optional.) Enter the call park code in the Call Park Code field.
It is configured for the Park soft key. This call park code will also apply to the call park key.
5. (Optional.) Enter the park retrieve code in the Park Retrieve Code field
The call park code and park retrieve code are predefined on the system server. Contact your
system administrator for more information.
Basic Call Features
171
It is configured for the Retrieve soft key. This park retrieve code will also apply to the
retrieve park key.
6. Click Confirm to accept the change.
Note
To park a call in FAC mode:
1. During a call, tap the Park soft key (You may need to tap the More soft key to see the Park
soft key) or press the call park key (if configured).
- If the call park code is not configured, you need to enter the call park code (e.g., *68).
Press , or tap Park.
If the Park or Retrieve soft key doesn’t appear on the LCD screen, please select Disabled from
the pull-down list of Custom Softkey via web user interface at path Settings->Softkey
Layout.
User Guide for the SIP-T48S IP Phone
172
- If the call park code is configured, the phone will dial the configured call park code
shown as below:
2. Do one of the following:
a) If you want to park the call against the local extension.
1) Press .
If the call is parked successfully, you will hear a voice prompt confirming that the
call is parked.
b) If you want to park the call against desired extension.
1) Enter an extension (e.g., 4606) where you want to park the call.
2) Press or .
If the call is parked successfully, you will hear a voice prompt confirming that the
call is parked. The call is parked against the extension you entered.
To retrieve a parked call in FAC mode:
1. Do one of the following:
- If the park retrieve code is not configured, dial the park retrieve code (e.g., *88).
- If the park retrieve code is configured, tap Retrieve on the dialing screen or press
retrieve park key (if configured) on the IP phone.
Basic Call Features
173
The phone will dial the configured park retrieve code and the Retrieve screen appears
as below:
2. Follow the voice prompt, do one of the following:
- Press on the phone where the call is parked.
- Enter the desired extension followed by # (e.g., 4606#) on any phone.
Note
Transfer Mode
To configure call park feature in transfer mode via web user interface:
1. Click on Features->Call Pickup.
2. Select Transfer from the pull-down list of Call Park Mode.
3. Select Enabled from the pull-down list of Call Park.
If Enabled is selected, the Park soft key will display on the LCD screen during a call, and
the Retrieve soft key will display on the dialing screen.
4. (Optional.) Enter the call park code in the Call Park Code field.
It is configured for the Park soft key. This call park code will also apply to the call park key.
5. (Optional.) Enter the park retrieve code in the Park Retrieve Code field.
You can also press the desired BLF or BLF list key to park a call or retrieve a parked call directly.
For more information, refer to Parking a Call/Retrieving a Parked Call to the Monitored User on
page 190.
User Guide for the SIP-T48S IP Phone
174
It is configured for the Retrieve soft key. This park retrieve code will also apply to the
retrieve park key.
6. Click Confirm to accept the change.
Note
To park a call in Transfer mode:
1. During a call, tap the Park soft key (You may need to tap the More soft key to see the Park
soft key) or the call park key (if configured).
- If the call park code is not configured, you need to enter the call park code.
Press , or tap Park. The call will be transferred to the shared parking lot.
- If the call park code is configured, the call will be directly transferred to the shared
parking lot.
Note
To retrieve a parked call in Transfer mode:
1. Do one of the following:
- If the park retrieve code is not configured, dial the park retrieve code (e.g., *11).
- If the park retrieve code is configured, tap Retrieve on the dialing screen or retrieve
park key (if configured) on the IP phone.
The phone will retrieve the parked call from the shared parking lot.
If the Park or Retrieve soft key doesn’t appear on the LCD screen, please select Disabled from
the pull-down list of Custom Softkey via web user interface at path Settings->Softkey
Layout.
For some servers, the system will return a specific retrieve park number (park retrieve code)
from which the call can be retrieved after parking successfully.
Basic Call Features
175
Call Pickup
You can use call pickup to answer someone else’s incoming call on your phone. The SIP-T48S IP
phone supports directed call pickup and group call pickup. Directed call pickup is used for
picking up a call that is ringing at a target phone number. Group call pickup is used for picking
up a call that is ringing at any phone number in a certain group. The pickup group should be
predefined, contact your system administrator for more information.
You can pick up an incoming call by using DPickup/GPickup. To use call pickup, you need to
configure the call pickup code beforehand on a global or per-line basis via web user interface.
The call pickup code configured on a per-line basis takes precedence over that configured on a
global basis.
Note
Directed Call Pickup
To enable directed call pickup and configure the directed call pickup code on a global
basis via web user interface:
1. Click on Features->Call Pickup.
2. Select Enabled from the pull-down list of Directed Call Pickup.
3. Enter the directed call pickup code in the Directed Call Pickup Code field.
4. Click Confirm to accept the change.
To configure the directed call pickup code on a per-line basis via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
If there are many incoming calls at the same time, tapping GPickup on the phone will pick up the
call that rings first.
User Guide for the SIP-T48S IP Phone
176
3. Enter the directed call pickup code in the Directed Call Pickup Code field.
4. Click Confirm to accept the change.
To pick up a call directly:
1. Pick up the handset, tap the line key or press the Speakerphone key.
The DPickup appears on the on-screen keypad.
2. Tap DPickup on your phone when the target phone receives an incoming call.
3. Enter the phone number which is receiving an incoming call.
4. Tap DPickup again.
The call is answered on your phone.
You can also configure a DSS key as a direct pickup key via phone user interface or web user
interface. Once configured, you can pick up a call by tapping the direct pickup key directly. For
more information, refer to DSS Keys on page 107.
Basic Call Features
177
Group Call Pickup
To enable group call pickup and configure the group call pickup code on a global basis via
web user interface:
1. Click on Features->Call Pickup.
2. Select Enabled from the pull-down list of Group Call Pickup.
3. Enter the group call pickup code in the Group Call Pickup Code field.
4. Click Confirm to accept the change.
To configure the group call pickup code on a per-line basis via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
User Guide for the SIP-T48S IP Phone
178
3. Enter the group call pickup code in the Group Call Pickup Code field.
4. Click Confirm to accept the change.
To pick up a call in the group:
1. Pick up the handset, tap the line key or press Speakerphone key.
The GPickup appears on the on-screen keypad.
2. Tap GPickup on your phone when a phone in the group receives an incoming call.
The call is answered on your phone.
Basic Call Features
179
You can also configure a DSS key as a group pickup key via phone user interface or web user
interface. Once configured, you can pick up a call by tapping the group pickup key directly. For
more information, refer to DSS Keys on page 107.
Note
Anonymous Call
You can use anonymous call to block your identity and phone number from appearing to the
called party when you call someone. For example, you want to call to consult some of the
services, but don’t want to be harassed. Anonymous call is configurable on a per-line basis. You
can also configure the phone to send anonymous call on/off code to the server to
activate/deactivate anonymous call on the server side.
Note
To configure anonymous call via phone user interface:
1. Tap ->Features->Anonymous.
2. Tap the desired line.
3. Tap the On radio box of the Local Anonymous field.
4. (Optional.) Tap the On Code or Off Code radio box of the Send Anony Code field.
5. (Optional.) Enter the anonymous call on code and off code respectively in the On Code and
Off Code field.
The phone will send the configured on code or off code depending on your selection when
you enable or disable anonymous call feature on the phone.
Anonymous call is not available on all servers. Contact your system administrator for the
anonymous call on code and off code.
The directed call pickup code and group call pickup code are predefined on the system server.
Contact your system administrator for more information.
The call pickup code configured on a per-line basis takes precedence over that configured on a
global basis.
User Guide for the SIP-T48S IP Phone
180
6. Tap the Save soft key to accept the change or to cancel.
Anonymous call is configurable via web user interface at the path Account->Basic.
To place an anonymous call:
1. Using the specific line on the phone to place a call to phone B.
The touch screen of phone B prompts an incoming call from anonymity.
Anonymous Call Rejection
You can use anonymous call rejection to reject incoming calls from anonymous callers.
Anonymous call rejection automatically rejects incoming calls from callers who deliberately
block their identities and numbers from being displayed. Anonymous call rejection is
configurable on a per-line basis. You can also configure the phone to send anonymous call
rejection on/off code to the server to activate/deactivate anonymous call rejection on the server
side.
To configure anonymous call rejection via phone user interface:
1. Tap ->Features->Anonymous.
2. Tap the desired line.
3. Tap the On radio box of the Anony Rejection field.
4. (Optional.) Tap the On Code or Off Code radio box of the Send Rejection Code field.
5. (Optional.) Enter the anonymous call rejection on code and off code respectively in the On
Code and Off Code field.
Basic Call Features
181
The phone will send the configured on code or off code depending on your selection when
you enable or disable anonymous call rejection feature on the phone.
6. Tap the Save soft key to accept the change or to cancel.
Anonymous call rejection is configurable via web user interface at the path Account->Basic.
If phone B has anonymous call feature enabled and places a call to your IP phone, the call will be
rejected, and the touch screen of the phone B will display the following:
User Guide for the SIP-T48S IP Phone
182
Advanced Phone Features
183
Advanced Phone Features
This chapter provides operating instructions for the advanced features of the SIP-T48S IP phone.
Topics include:
Busy Lamp Field (BLF)
BLF List
Call Recording
Hot Desking
Intercom
Multicast Paging
Music on Hold
Automatic Call Distribution (ACD)
Shared Call Appearance (SCA)
Bridged Line Appearance (BLA)
Messages
If you require additional information or assistance with your new phone, contact your system
administrator.
Busy Lamp Field (BLF)
You can use BLF to monitor a specific line for status changes on the phone. For example, you
can configure a BLF key on the phone to monitor the status of a friend’s line (busy or idle). The
BLF key icon illuminates solid red when the friend’s line is in use.
Configuring the BLF Feature on the IP Phone
You need to configure the IP phone to perform BLF monitoring. IP phones being monitored do
not require any configuration.
Configuring a BLF Key
To configure a BLF key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select BLF from the pull-down list.
4. Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
User Guide for the SIP-T48S IP Phone
184
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Enter the phone number or extension you want to monitor in the Value field.
7. (Optional.) Enter the directed call pickup code in the Extension field.
If it is configured, when the monitored user receives an incoming call, the supervisor can
tap the BLF key to pick up the call directly.
8. Tap the Save soft key to accept the change or to cancel.
BLF key is configurable via web user interface at the path Dsskey->Line key.
Configuring Visual and Audio Alert for BLF Pickup
You can enable visual alert feature for BLF pickup on the phone. This allows the LCD screen of
the monitoring phone to display the caller ID when the monitored line receives an incoming call.
You can also enable audio alert feature for BLF pickup on the phone. If audio alert feature for
BLF pickup is enabled, you can specify a desired ring tone to play when the monitored line
receives an incoming call.
To enable visual and audio alert features via web user interface:
1. Click on Features->Call Pickup.
2. Select Enabled from the pull-down list of Visual Alert for BLF Pickup.
Advanced Phone Features
185
3. Select Enabled from the pull-down list of Audio Alert for BLF Pickup.
4. Click Confirm to accept the change.
Note
To configure BLF ring type via phone user interface:
1. Tap ->Basic->Sound->BLF Ring Type.
2. Tap or to scroll through the list of available ring tones.
3. Tap the desired ring tone.
4. (Optional.) Press to adjust the ringer volume.
5. Tap the Save soft key to accept the change or to cancel.
BLF ring type is configurable via web user interface at the path Features->Call Pickup.
When the monitored line receives an incoming call, the following occurs on your phone:
The phone plays a specific ring tone (if enabled).
Visual and audio alert features are configurable via web user interface only.
User Guide for the SIP-T48S IP Phone
186
The BLF key icon flashes red.
The caller ID appears on the touch screen (if enabled).
In the following figure, the touch screen shows an incoming call from 1008 on the monitored
line.
You can do the following actions:
- Tap the DPickup soft key to pick up the call.
- Tap the Send soft key to dial out the monitored phone number.
- Tap the New Call soft key to place a new call.
- Tap the Cancel soft key to exit the screen.
Note
Configuring Directed Call Pickup Code
If you configure the directed call pickup code in advance, you can pick up the monitored user’s
incoming call by tapping the BLF key. You can configure the directed call pickup code when
configuring a BLF key. For more information, refer to Configuring a BLF Key on page 183. You
can also configure the directed call pickup code on a global or per-line basis via web user
interface.
If you enable visual alert feature, you can also pick up the monitored user’s incoming call by
tapping the DPickup soft key. To use DPickup soft key to pick up the call, the call pickup code
can only be configured on a global or per-line basis via web user interface.
Note
If your phone is locked, you cannot use the DPickup, Send, New Call and Cancel soft keys until
unlocked. For more information, refer to Phone Lock on page 60.
The pickup code is used in the following order of preference: Extension (Dsskey->Line
Key)>Directed Call Pickup Code (Account->Advanced)>Directed Call Pickup Code
(Features->Call Pickup). If pickup code is not configured, tapping the BLF key/DPickup soft key
will directly call the monitored user when he/she receives an incoming call.
Advanced Phone Features
187
To configure the directed call pickup code on a global basis via web user interface:
1. Click on Features->Call Pickup.
2. Enter the desired pickup code in the Directed Call Pickup Code field.
3. Click Confirm to accept the change.
To configure the directed call pickup code on a per-line basis via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Enter the desired pickup code in the Directed Call Pickup Code field.
4. Click Confirm to accept the change.
User Guide for the SIP-T48S IP Phone
188
Configuring Transfer Mode on DSS Key
When there is an active call on the IP phone, you can handle the active call differently
depending on the configuration of transfer mode via DSS key with the BLF key.
To configure the transfer mode on DSS key via web user interface:
1. Click on Features->Transfer.
2. Select the desired transfer mode from the pull-down list of Transfer Mode via Dsskey.
If you select Blind Transfer, tap the BLF key to blind transfer the call to the
monitored user.
If you select Attended Transfer, tap the BLF key to dial out the monitored phone
number and then perform an attended or a semi-attended transfer.
If you select New Call, tap the BLF key to place a new call to the monitored user.
The original call is placed on hold.
3. Click Confirm to accept the change.
Note
Using BLF Feature on the IP Phone
You can use the BLF key in the following ways:
Place a call to the monitored user.
Transfer a call to the monitored user.
Pick up an incoming call of the monitored user.
Placing a Call to the Monitored User
You can tap a BLF key to dial out the monitored phone number when the monitored line is idle.
To place a call to the monitored user when the IP phone is idle:
1. Tap the BLF key.
The IP phone dials out the phone number of the monitored user.
Transfer Mode on DSS Key is also applicable to BLF list feature.
Advanced Phone Features
189
Transferring a Call to the Monitored User
When there is already an active call on the IP phone, you can transfer the active call to the
monitored user by tapping the BLF key. The phone handles the active call differently depending
on the configuration of transfer mode via DSS key with the BLF key (refer to Configuring
Transfer Mode on DSS Key). The transfer mode on DSS key has the following modes:
Blind Transfer
Attended Transfer
New Call
When the transfer mode on DSS key is set to Blind Transfer and there is already an active call
on the IP phone, you can do the following:
To perform a blind transfer:
1. Tap the BLF key of the monitored user which you want to transfer this call to.
Then the active call is connected to the number of the monitored user.
When the transfer mode on DSS key is set to Attended Transfer and there is already an active
call on the IP phone, you can do the following:
To perform a semi-attended transfer:
1. Tap the BLF key of the monitored user which you want to transfer this call to. The phone
will dial the number of the monitored user.
2. Tap the BLF key of the monitored user again or the Transfer soft key to complete the
transfer when receiving ringback.
To perform an attended transfer:
1. Tap the BLF key of the monitored user which you want to transfer this call to. The phone
will dial the number of the monitored user.
2. Tap the BLF key of the monitored user again or the Transfer soft key to complete the
transfer after the monitored user answers the call.
When the transfer mode on DSS key is set to New Call and there is already an active call on the
IP phone, you can do the following:
To perform a new call:
1. Tap the BLF key of the monitored user you want to call.
The phone will dial the number of the monitored user. The original call is placed on hold.
Picking up an Incoming Call of the Monitored User
When the monitored user receives an incoming call, the BLF key icon indicator of the monitored
user will become and flashing. You can use the BLF key to pick up an incoming call of the
monitored user. You can use the BLF key to pick up an incoming call of the monitored user. If
you enable visual alert feature on the phone, you can pick up the incoming call using the
User Guide for the SIP-T48S IP Phone
190
DPickup soft key. Before picking up an incoming call, ensure that the directed call pickup code
has been configured in advance.
To pick up an incoming call using the BLF key or the DPickup soft key:
1. Tap the BLF key or the DPickup soft key.
The incoming call of the monitored user is answered on the IP phone.
Note
Parking a Call/Retrieving a Parked Call to the Monitored User
You can press the desired BLF key to park a call or retrieve a parked call directly in FAC mode. It
should be pre-configured by your system administrator.
To park a call in FAC mode:
1. During a call, tap the Park soft key (You may need to tap the More soft key to see the Park
soft key).
2. Tap to back to the idle screen, and then tap the desired BLF key to park the call to the
monitored user.
To retrieve a parked call in FAC mode:
1. Tap the Retrieve soft key on the dialing screen.
2. Tap to back to the idle screen, and then tap the desired BLF key to retrieve a call that
is parked to the monitored user.
Note
BLF List
You can use the BLF List feature to monitor a list of users defined by your system administrator.
For example, your system administrator enables BLF List, and creates a BLF List URI (e.g.,
BLFList@example.com) including a list of user1, user2 on the server. The BLF List keys on the IP
phone can present the status of user1 and user2. The key icons illuminate flashing or solid
depending on the status of those users. For more BLF List key icon indicators, refer to LED
Instructions on page 9.
You can use the BLF List keys in the following ways:
When the monitored user is idle, tap the BLF list key to dial out the phone number.
When there is already an active call on the IP phone, you can transfer the active call to the
If the directed call pickup code is not configured, the phone will place a call to the monitored
user instead of picking up an incoming call of the monitored user when you tap the BLF key or
the DPickup soft key.
Make sure that the call park code/park retrieve code is configured via web user interface at the
path: Feature->Call Pickup. For more information, refer to FAC Mode on page 170.
Advanced Phone Features
191
monitored user by tapping the BLF List key. The phone handles the active call differently
depending on the configuration of transfer mode via Dsskey with the BLF list key. For more
information on the transfer mode on DSS key, refer to refer to Configuring Transfer Mode
on DSS Key on page 188.
When the monitored user receives an incoming call, tap the BLF list key to pick up the call
directly. Before picking up an incoming call, ensure that the BLF List Pickup Code has been
configured in advance. If the code is not configured, the phone will place a call to the
monitored user instead of picking up the incoming call of the monitored user when you
tap the BLF List key.
When there is a conversation on the monitored user, tap the BLF list key to barge in and
set up a conference call. Before barging in an active call, ensure that the BLF List Barge In
Code has been configured in advance. If the code is not configured, the phone will place a
call to the monitored user instead of barging in an active call of the monitored user when
you tap the BLF List key.
When a call is being parked against the monitored phone, tap the BLF List key to retrieve
the parked call from the monitored user. Before retrieving the parked call, ensure that the
BLF List Retrieve Call Parked Code has been configured in advance. If the code is not
configured, the phone will place a call to the monitored user instead of retrieving the
parked call when you tap the BLF List key.
To configure BLF List settings via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Enter the BLF List URI in the BLF List URI field.
4. (Optional.) Enter the directed call pickup code in the BLF List Pickup Code field.
5. (Optional.) Enter the barge-in code in the BLF List Barge In Code field.
User Guide for the SIP-T48S IP Phone
192
6. (Optional.) Enter the park retrieve code in the BLF List Retrieve Call Parked Code field.
7. Click Confirm to accept the change.
Note
According to the response message from the server, the IP phone will automatically configure
the BLF List keys beginning from the first unused DSS key (The default order of BLF list keys
assigned automatically is Line Key->Ext Key. To customize the assignment order, contact your
system administrator.). Once any DSS key is seized, the IP phone will skip to configure the next
DSS key.
You can receive a visual or/and an audio alert (if enabled) on your phone when the monitored
user receives an incoming call. For more information, refer to Configuring Visual and Audio Alert
for BLF Pickup on page 184.
Note
Call Recording
The SIP-T48S IP phone supports local and server recording. If you insert a USB flash drive into
the USB port on your phone, you can record active calls on your phone. The recordings are
The pickup code is used in the following order of preference:
BLF List Pickup Code (Account->Advanced)>Directed Call Pickup Code
(Account->Advanced)>Directed Call Pickup Code (Features->Call Pickup). If all of them are not
configured, tapping the BLF List key will directly call the monitored user when he/she receives an
incoming call. For more information on pickup code, refer to Call Pickup on page 175.
For more information on BLF List URI/BLF List Pickup Code/BLF List Barge In Code/BLF List
Retrieve Call Parked Code, contact your system administrator.
Advanced Phone Features
193
saved as *.wav files on your USB flash drive. You can also record active calls by tapping a record
key on the phone (refer to Recording Using a Record Key). The recordings are saved on the
server.
Note
Recording Using a USB Flash Drive
When the phone is idle, and you insert a USB flash drive into the USB port on your phone, the
phone will detect the USB flash drive and display a flashing icon . After detecting the USB
flash drive, the icon stops flashing and LCD screen prompts “USB device has been connected
successfully!”.
When there is an active call, and you insert a USB flash drive into the USB port on IP phone, the
LCD screen will prompt “USB device has been connected successfully! Available Recording Time:
XX:XX:XX”. For more information on the available recording time, refer to Viewing the Storage
Space on page 199.
Before recording any call, especially those involving PSTN, it is necessary to know about the rules
and restrictions of any governing call-recording in the place you are in. It is also very important to
have the consent of the person you are calling before recording the conversation.
User Guide for the SIP-T48S IP Phone
194
The following figure shows an example:
Note
The Start REC soft key controls the recording function, and is available:
The free space of USB flash drive is sufficient
When there are one or more calls connected to your IP phone
During an active call
When calls are on hold or muted
During an attended transfer
During a conference call
The Start REC soft key is not available when:
You place a new call
No free space of USB flash drive
The phone prompts you to answer an incoming call
Call Recording
You can record active calls or conferences.
To record a call:
1. Tap the More soft key, and then tap the Start REC soft key during a call.
Recording using a USB flash drive is not available by default. For more information, contact your
system administrator.
Advanced Phone Features
195
The LCD screen displays the icon and recording duration.
During the recording, you can do the following:
- Tap the More soft key, and then tap the Pause REC soft key. Then appears on the
touch screen and the duration stops counting. The Resume REC soft key appears on the
LCD screen. Both you and other parties are not recorded.
Tap the Resume REC soft key to continue recording.
- Tap the More soft key, and then tap the Stop REC soft key. The Start REC soft key appears
on the LCD screen. Recording stops and the LCD screen prompts “Call has been
successfully recorded on USB device”.
Tap the Start REC soft key to start recording again, the recording will be saved as a new
“.wav” file.
- Press or tap the Hold soft key while recording, recording is paused. Then
appears on the touch screen and the duration stops counting. Both you and the callee are
not recorded.
Tap the Resume soft key to resume the call, the recording is continued.
- Press while recording, the muted party is not recorded.
User Guide for the SIP-T48S IP Phone
196
- If there is insufficient free space (30 minutes left) on the USB flash drive during recording,
the LCD screen prompts the following:
Tap Cancel to return to the previous screen.
- If there is insufficient free space (10 minutes left) on the USB flash drive during recording,
the LCD screen prompts the following:
Tap the Cancel soft key to return to the previous screen.
If no free space of the USB flash drive during recording, recording is stopped and saved on the
USB flash drive automatically. The related soft keys during recording disappear. You cannot
record a call unless the space of your USB flash drive is released.
Note
When you end a call while recording, the recording will be stopped and saved as *.wav file on
the USB flash drive automatically.
You can transfer or set up a conference call while recording. All the calls are recorded in the same
way and will be saved in as a “.wav” file.
Advanced Phone Features
197
To stop recording while the phone records, do one of the following:
- Tap the More soft key, and then tap the Stop REC soft key.
The LCD screen prompts “Call has been successfully recorded on USB device”, the recording
icon and recording duration disappear.
- Tap the More soft key and then tap the End Call soft key.
The LCD screen prompts “Call has been successfully recorded on USB device”, the recording
icon and recording duration disappear, and the phone returns to the idle screen.
Note
Playing Back Recorded Calls
You can play back recorded calls on your phone. You can also browse and delete the recorded
files on the USB flash drive.
Note
Playback can occur on either the phone itself or on a computer using an application capable of
playing “.wav” files.
Unplugging the USB flash drive during a recording call will stop call recording, the recording will
be saved on the USB flash drive automatically.
User Guide for the SIP-T48S IP Phone
198
To browse the recorded files:
1. Tap ->USB->Browse Audio.
The touch screen shows all recorded audio files in the Browse Audio list. The filename
consists of the recording time & date, the other party’s number/IP address/name (or the
first person’s number/IP address/name you called).
2. Tap or to scroll through the recorded files if required.
3. Tap the desired audio or to play.
The touch screen shows the recording duration and the size of the recorded file.
During the recording playback, you can do the following:
- Tap to pause the playback. Then appears on the touch screen
Tap to continue the playback.
- Drag the slider to skip forward the playback or rewind the playback.
- Press to adjust the volume of audio output.
- Tap to stop the playback.
- Press the Speakerphone key, the HEADSET key, or pick up the handset to alternate among
Advanced Phone Features
199
Speakerphone, Headset and Handset modes.
If you are playing back a recorded call and an incoming call arrives on your phone, the playback
will be paused and the phone rings. You can tap again to continue to play the recording
when ending the call.
Deleting the Recorded File
To delete a recorded file:
1. Tap ->USB->Browse Audio.
2. Tap after the desired recording you want to delete.
The LCD screen prompts the following warning:
3. Tap OK to confirm the deletion or Cancel to cancel.
Viewing the Storage Space
You can view the storage space (e.g., total space, used space, free space) of the USB flash drive
on the phone.
User Guide for the SIP-T48S IP Phone
200
To view the storage space:
1. Tap ->USB->Storage Space.
Recording Using a Record Key
You can record calls by tapping a record key on the phone. The SIP-T48S IP phone supports
record and URL record.
Two ways of call recording:
Record: The phone sends a SIP INFO message containing a specific header “Record: on/off”
to trigger a recording.
URL Record: The phone sends an HTTP URL request to trigger a recording. Contact your
system administrator for the predefined URL.
Note
The Record and URL Record keys control the recording function, and are available:
During an active call
When calls are on hold or muted
During a blind or attended transfer
During a conference call
The Record and URL Record keys are not available when:
There are no connected calls on your phone
You place a new call
Server recording is not available on all servers. Contact your system administrator for more
information.
Advanced Phone Features
201
Configuring a Record Key
To configure a record key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4. Tap the gray box of the Key Type field, and then select Record from the pull-down list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Tap the Save soft key to accept the change or to cancel.
Record key is configurable via web user interface at the path Dsskey->Line Key.
Configuring a URL Record Key
To configure a URL record key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select URL Record from the pull-down list.
4. (Optional.) Enter the string that will appear on the touch screen in the Label field.
User Guide for the SIP-T48S IP Phone
202
5. Enter the URL (e.g., http://10.1.2.224/phonerecording.cgi) in the Value field.
6. Tap the Save soft key to accept the change or to cancel.
URL record key is configurable via web user interface at the path Dsskey->Line Key.
Recording a Call
To record a call:
1. Tap the record key or URL record key during a call.
If the recording starts successfully, the recording icon will appear on the touch screen and
the icon of the record key or URL Record key changes to .
2. Tap the record key or URL record key again to stop recording.
The recording icon disappears from the touch screen and the icon of the record key or URL
record key changes to .
Recording status indicators you need to know:
Circumstance
Icons on the touch screen
A recording is started
appears on the touch screen
A recording cannot be started
appears for 1 second
A recording cannot be stopped
appears for 1 second, then goes back
The recording box is full
appears for 1 second
The call cannot be recorded
appears for 1 second
You can listen to the recordings stored on your server system. For example, you can dial an
access code to listen to the recordings.
Note
The way in which you listen to the recordings may be different depending on the server. Contact
your system administrator for more information.
Advanced Phone Features
203
Hot Desking
Hot desking originates from the definition of being the temporary physical occupant of a work
station or surface by a particular employee. A primary motivation for hot desking is cost
reduction. This feature is regularly used in places where not all the employees are in the office at
the same time, or not in the office for very long, which means that actual personal offices would
be often vacant, consuming valuable space and resources.
You can use hot desking on the SIP-T48S IP phone to log out of existing accounts and then log
into a new account. As a result, many users can share the phone resource at different times. To
use this feature, you need to configure a hot desking key in advance.
Note
To configure a hot desking key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4. Tap the gray box of the Key Type field, and then select Hot Desking from the pull-down
list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Tap the Save soft key to accept the change or to cancel.
Hot desking key is configurable via web user interface at the path Dsskey->Line Key.
Hot desking is not available on all servers. Contact your system administrator for more
information.
User Guide for the SIP-T48S IP Phone
204
To use hot desking:
1. Tap the hot desking key when the phone is idle.
The touch screen prompts the following warning:
2. Tap OK.
Registration configurations of all accounts on the phone will be cleared immediately.
The login wizard will be displayed as below:
3. Enter the login information in each field.
4. Tap the Save soft key to login or to cancel.
Advanced Phone Features
205
Intercom
Intercom is a useful feature in an office environment to quickly connect with the operator or the
secretary. You can tap the intercom key to automatically connect with a preconfigured target
extension for outgoing intercom calls, and the target extension will automatically answer
incoming intercom calls by default. You can also use intercom key to monitor a specific line for
status changes on the phone.
Note
Configuring the Intercom Feature on the IP Phone
Configuring an Intercom Key
To configure an intercom key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Intercom from the pull-down list.
4. Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Enter the target extension number in the Value field.
7. (Optional.) Enter the directed call pickup code in the Extension field.
If it is configured, when the target extension receives an incoming call, the supervisor can
tap the intercom key to pick up the call directly. Contact your system administrator for
more information.
8. Tap the Save soft key to accept the change or to cancel.
Intercom is not available on all servers. Contact your system administrator for more information.
User Guide for the SIP-T48S IP Phone
206
Intercom key is configurable via web user interface at the path Dsskey->Line Key.
Incoming Intercom Calls
The SIP-T48S IP phone supports to automatically answer an incoming intercom call by default.
The phone automatically plays a warning tone when it receives an incoming intercom call. In
addition, you can enable the phone to mute the microphone when it automatically answers an
incoming intercom call. You can also enable the phone to automatically answer an incoming
intercom call while there is already an active call on the phone. The active call is then placed on
hold.
Intercom features you need to know:
Intercom Feature
Description
Intercom Allow
Enable or disable the IP phone to automatically answer an
incoming intercom call.
Intercom Mute
Enable or disable the IP phone’s microphone for intercom
calls.
Intercom Tone
Enable or disable the IP phone to play a warning tone
when it receives an incoming intercom call.
Intercom Barge
Enable or disable the IP phone to automatically answer an
incoming intercom call while there is already an active call
on the phone.
Intercom Allow
You can enable or disable the phone to automatically answer an incoming intercom call. If
Intercom Allow is enabled, the phone will automatically answer an incoming intercom call. If
Intercom Allow is disabled, the phone will handle an incoming intercom call like a normal call
instead of directly rejecting it. Intercom Allow is enabled by default.
Note
Intercom Mute
You can mute or un-mute the phone’s microphone for intercom calls automatically. If Intercom
Mute is enabled, the microphone will be muted for intercom calls. If Intercom Mute is disabled,
the microphone will work for intercom calls. Intercom Mute is disabled by default.
Intercom Tone
You can enable or disable the phone to play a warning tone when receiving an intercom call. If
Intercom Tone is enabled, the phone will play a warning tone before answering the intercom call.
If Intercom Tone is disabled, the phone will automatically answer the intercom call without
warning. Intercom Tone is enabled by default.
Your administrator can set a period of delay time before the phone automatically answers
intercom calls. Contact your system administrator for more information.
Advanced Phone Features
207
Intercom Barge
You can enable or disable the phone to automatically answer an incoming intercom call while
there is already an active call on the phone. If Intercom Barge is enabled, the phone will
automatically answer the intercom call and place the active call on hold. If Intercom Barge is
disabled, the phone will handle an incoming intercom call like a waiting call. Intercom Barge is
disabled by default.
Note
To configure intercom features via phone user interface:
1. Tap ->Features->Intercom.
2. Make the desired changes.
3. Tap the Save soft key to accept the change or to cancel.
Intercom features are configurable via web user interface at the path Features->Intercom.
Using Intercom
You can use the intercom key in the following ways:
Place a call to the target extension
Pick up an incoming call of the target extension
Note
To enable the phone to receive a new incoming call when it has an active call, make sure that call
waiting feature is enabled on the phone in advance. For more information, refer to Call Waiting
on page 164.
To use the intercom key to pick up an incoming call, make sure the intercom subscription feature
is enabled. For more information, contact your system administrator.
User Guide for the SIP-T48S IP Phone
208
Placing an Intercom Call to the Target Extension
To place an intercom call when the target phone is idle:
1. Tap the intercom key.
The target extension plays a warning tone and automatically answers the call in the
hands-free (speakerphone) mode by default.
2. To end the intercom call, tap the intercom key again or the End Call soft key.
Picking up an Incoming Call of the Target Extension
When the target extension receives an incoming call, the intercom key icon of the target
extension will change to . If you configure the directed call pickup code in advance, you can
pick up the target extension’s incoming call by tapping the intercom key. You can configure the
directed call pickup code when configuring an intercom key. For more information, refer to
Configuring an Intercom Key on page 205.
To pick up an incoming call when the target phone is ringing:
1. Tap the intercom key.
The incoming call of the target extension is answered on the IP phone.
Note
Multicast Paging
You can use multicast paging to quickly and easily broadcast time sensitive announcements to
users who are listening to a specific multicast group and a specific channel. You can configure a
multicast paging key or the paging list key on the phone, which allows you to send a Real Time
Transport Protocol (RTP) stream to the pre-configured multicast address(es) and channel(s)
without involving SIP signaling. You can configure the phone to receive an RTP stream from
pre-configured multicast listening address(es) and channel(s) without involving SIP signaling.
You can specify up to 31 multicast listening addresses and channels.
The following describes 31 paging channels:
0: You can broadcast audio to channel 0. Note that the Yealink IP phones running old
firmware version (old paging mechanism) can be regarded as listening to channel 0. It is
the default channel.
1 to 25: You can broadcast audio to a specific channel. We recommend that you specify
these channels when broadcasting with Polycom IP phones which have 25 channels you
can listen to.
26 to 30: You can broadcast audio to a specific channel. We recommend that you specify
these channels when broadcasting with Yealink IP phones running new firmware version
If the directed call pickup code is not configured, the phone will place a call to the target
extension instead of picking up an incoming call of the target extension when you tap the
intercom key.
Advanced Phone Features
209
(new paging mechanism).
The IP phones will automatically ignore all incoming multicast paging calls on the different
channel.
Sending RTP Stream
To configure a multicast paging key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4. Tap the gray box of the Key Type field, and then select Multicast Paging from the
pull-down list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Enter the multicast IP address and port number (e.g., 224.5.6.20:10008) in the Value field.
The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
7. Enter the desired channel in the Channel field.
The valid channel ranges from 0 to 30.
8. Tap the Save soft key to accept the change or to cancel.
Multicast paging key is configurable via web user interface at the path Dsskey->Line Key.
User Guide for the SIP-T48S IP Phone
210
To configure a paging list key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Key Event from the pull-down list.
4. Tap the gray box of the Key Type field, and then select Paging List from the pull-down
list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Tap the Save soft key to accept the change or to cancel.
Paging list key is configurable via web user interface at the path Dsskey->Line Key.
To configure paging list via phone user interface:
1. Tap the paging list key when the phone is idle.
If the paging list key is not configured, you can also tap ->Features->Paging List to
configure the paging list.
2. Tap a desired paging group.
The default tag is Empty if it is not configured before.
Advanced Phone Features
211
3. Tap the Edit soft key.
4. Enter the multicast IP address and port number (e.g., 224.5.6.20:10008) in the Address
field.
The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
5. Enter the string that will appear on the touch screen in the Label field
6. Enter the desired channel in the Channel field.
The valid channel ranges from 0 to 30.
7. Tap the Save soft key to accept the change.
8. Repeat steps 2 to 7, you can add more paging groups.
Paging list is configurable via web user interface at the path Directory->Multicast IP.
To delete a paging group via phone user interface:
1. Tap the paging list key when the phone is idle.
2. Tap a desired paging group.
3. Tap the Delete soft key.
4. Tap OK to accept the change or Cancel to cancel.
User Guide for the SIP-T48S IP Phone
212
If you want to delete all paging groups, you can tap the Delete All soft key.
You can also configure the phone to use a default codec for sending multicast RTP stream via
web user interface.
To configure a default codec for multicast paging via web user interface:
1. Click on Features->General Information.
2. Select the desired codec from the pull-down list of Multicast Codec.
The default codec is G722.
3. Click Confirm to accept the change.
Note
Receiving RTP Stream
You can configure the phone to receive a Real Time Transport Protocol (RTP) stream from the
pre-configured multicast address(es) and channel(s) without involving SIP signaling. You can
specify up to 31 multicast addresses and channels that the phone listens to on the network.
Note
If G722 codec is used for multicast paging, the touch screen will display the icon to indicate
that it is providing high definition voice.
Default codec for multicast paging is configurable via web user interface only.
RTP stream is listened in the hands-free (speakerphone) mode by default. If you want to listen the
RTP stream using the engaged audio device (speakerphone, handset or headset), contact your
system administrator for more information.
Fixed volume to play RTP stream for specified paging group is configurable by your system
administrator.
Advanced Phone Features
213
How the phone handles incoming multicast paging calls depends on Paging Barge, Ignore DND
and Paging Priority Active parameters configured via web user interface.
Paging Barge
The paging barge parameter defines the priority of the voice call in progress. If the priority of an
incoming multicast paging call is lower than that of the active call, it will be ignored
automatically. Valid values in the Paging Barge field:
1 to 31: Define the priority of the active call, 1 with the highest priority, 31 with the lowest.
Disabled: The voice call in progress will take precedence over all incoming paging calls.
Ignore DND
The ignore DND parameter defines the lowest priority of multicast listening address from which
the phone can receive an RTP stream when DND is activated. If a priority is selected from the
pull-down list of Ignore DND, the phone will ignore incoming multicast paging calls with lower
priorities when DND is activated in phone mode. Valid values in the Ignore DND field:
1 to 31: Define the lowest priority of the multicast listening address from which the phone
can receive an RTP stream, 1 with the highest priority, 31 with the lowest.
Disabled: All the incoming multicast paging calls will be ignored when DND is activated in
phone mode.
The phone will automatically answer all incoming multicast paging calls when DND is activated
in custom mode.
Paging Priority Active
The paging priority active parameter decides how the phone handles incoming multicast paging
calls when there is already a multicast paging call on the phone. If enabled, the phone will
ignore incoming multicast paging calls with lower priorities, otherwise, the phone will answer
incoming multicast paging calls automatically and place the previous multicast paging call on
hold. If disabled, the phone will automatically ignore all incoming multicast paging calls.
To configure multicast listening addresses via web user interface:
1. Click on Directory->Multicast IP.
2. Select the desired value from the pull-down list of Paging Barge.
3. Select the desired value from the pull-down list of Ignore DND.
4. Select the desired value from the pull-down list of Paging Priority Active.
5. Enter the multicast IP address(es) and port number (e.g., 224.5.6.20:10008) which the phone
listens to for incoming RTP multicast in the Listening Address field.
6. (Optional.) Enter the label in the Label field.
Label will appear on the touch screen when receiving the multicast RTP stream.
7. Select the desired channel to listen from the pull-down list of Channel.
User Guide for the SIP-T48S IP Phone
214
The default channel is 0.
8. Click Confirm to accept the change.
Note
Using Multicast Paging
To send RTP stream via a multicast paging key when the receiver’s phone is idle:
1. Tap the multicast paging key when the phone is idle.
The phone sends RTP to a preconfigured multicast address (IP: Port).
Both the sender’s and receiver’s phones play a warning tone and the receiver automatically
answers the multicast RTP session in the hands-free (speakerphone) mode.
The multicast paging key icon indicator will become and solid.
The following figure shows a multicast RTP session on the phone:
The priorities of listening addresses are predefined: 1 with the highest priority, 31 with the lowest.
Multicast listening addresses are configurable via web user interface only.
Advanced Phone Features
215
2. You can do the following:
Tap the Hold soft key to place the current multicast RTP session on hold.
The sender’s phone places the multicast RTP session on hold and receiver’s phone
releases the session.
To resume the held multicast RTP session, tap the Resume soft key.
The multicast RTP session is established again.
Tap the End Call soft key to end the multicast RTP session.
Note
To send RTP stream via a paging key list when the receiver’s phone is idle:
1. Tap the paging list key when the phone is idle.
2. Tap the desired paging group.
3. Tap the Paging soft key to send RTP.
4. Your can do the following:
Tap the Hold soft key to place the current multicast RTP session on hold.
The sender’s phone places the multicast RTP session on hold and receiver’s phone
releases the session.
To resume the held multicast RTP session, tap the Resume soft key.
The multicast RTP session is established again.
Tap the End Call soft key to end the multicast RTP session.
Music on Hold (MoH)
Music on hold (MoH) is the business practice of playing recorded music to fill the silence that
Multicast RTP is one way only from the sender to the multicast address(es) (receiver). For
outgoing RTP multicasts, all other existing calls on the phone will be placed on hold.
User Guide for the SIP-T48S IP Phone
216
would be heard by the party placed on hold. To use this feature, you should specify a SIP URI
pointing to a Music on Hold Server account. When a call is placed on hold, the phone will send a
SIP INVITE message to the Music on Hold Server account. The Music on Hold Server account
automatically answers the SIP INVITE messages and immediately plays audio from some source
located anywhere (LAN, Internet) to the held party. Contact your system administrator for the
SIP URI.
Note
To configure music on hold server via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Enter the SIP URI (e.g., sip:moh@sip.com) in the Music Server URI field.
4. Click Confirm to accept the change.
When you place a call on hold, music will be played to the held party.
Note
Automatic Call Distribution (ACD)
ACD is often used in offices for customer service, such as call center. The ACD system handles
large volumes of incoming calls from callers who have no need to talk to a specific person but
who require assistance from any of multiple persons at the earliest opportunity. ACD on the
For this feature to function, all involved parties cannot use encrypted RTP (SRTP).
Music on hold server is configurable via web user interface only.
If your server supports the MOH feature, you can also upload the custom music file into it
directly. For more information, contact your service provider.
Advanced Phone Features
217
SIP-T48S IP phone allows the ACD system to distribute large volumes of incoming calls to the
registered ACD users. To use this feature, you should configure an ACD key in advance. For
more information on ACD key icon indicators, refer to Icon Instructions on page 3.
Note
To configure an ACD key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select ACD from the pull-down list.
4. (Optional.) Enter the string that will appear on the touch screen in the Label field.
5. Tap the Save soft key to accept the change or to cancel.
ACD key is configurable via web user interface at the path Dsskey->Line Key.
To log into the ACD system:
1. Tap the ACD key when the phone is idle.
The touch screen prompts you the following information:
Make sure ACD is enabled on your IP phone. For more information, contact your system
administrator.
User Guide for the SIP-T48S IP Phone
218
User ID: the identity used to log into the queue.
Password: the password used to log into the queue.
2. Tap the Login soft key to log in.
Note
After configuring an ACD key, you can tap the ACD key to log into the ACD system. After logging
in, you are ready to receive calls from the ACD system. You can tap the ACD key to show your
current ACD user status. You can tap the Available/Unavailable soft key to change your ACD
user status. ACD user status synchronizes on both IP phone and ACD system.
When you set the ACD user status to be available, the ACD key icon indicator will become
and solid, and then the server begins distributing calls to your IP phone.
When you set the ACD user status to be unavailable, the ACD key icon indicator will become
and flashing, and then the server temporarily stops distributing calls to your IP phone. To log
out of the ACD system, tap the Logout soft key.
Note
It is recommended you configure no more than one ACD key per phone. At any time, at most one
ACD key can be in progress on your phone.
Contact your system administrator for the User ID and Password to access the ACD system.
Advanced Phone Features
219
Shared Call Appearance (SCA)
You can use SCA feature to share an extension which can be registered on two or more IP
phones at the same time. The shared line is indicated by a different line icon.
In the following figure, the first line is private and the second line is shared:
If two phones share a line, an incoming call to this extension will cause both phones to ring
simultaneously. The incoming call can be answered on either phone but not both.
This feature is very useful in the boss and secretary scenario. For example, the secretary can
share the boss's extension on her phone. When there is an incoming call to the extension of the
boss, both the phones of the boss and the secretary will ring simultaneously. Either the boss or
the secretary can answer the call. Calls on the shared line can be placed on hold, barged in or
retrieved from another shared phone.
User Guide for the SIP-T48S IP Phone
220
Configuring SCA Feature on the IP Phone
You can configure a primary account on the IP phone and other alternate accounts on the other
IP phones. In a SCA Hybrid Key System scenario, you can automatically assign multiple DSS keys
with Line type for a registered shared line on the phone (If auto linekeys feature is enabled). For
example, party A, party B share the account 4603, phone A registers the primary account 4603
and assigns line key 1 and line key 2 for the account 4603, phone B registers the alternate
account 4603_1 and assigns line key 1 and line key 2 for the account 4603_1, phone C registers
the account 4604.
To configure the auto linekeys feature via web user interface:
1. Click on Features->General Information.
2. Select Enabled from the pull-down list of Auto LineKeys.
Advanced Phone Features
221
If Auto LineKeys is enabled, you can automatically assign multiple DSS keys with Line
type for a registered shared line on the phone.
3. Click Confirm to accept the change.
To configure the shared line settings and the number of line key on phone A via web user
interface:
1. Register the primary account 4603.
User Guide for the SIP-T48S IP Phone
222
2. Click on Advanced, and then select Shared Call Appearance from the pull-down list of
Shared Line.
3. Enter the desired number in the Number of line key field.
This field appears only if Auto Linekeys is enabled.
The default value is 1. In this example, the value is set to 2.
4. Click Confirm to accept the change.
The phone A will automatically configure the line keys from the first unused DSS key, according
to the configured number in the Number of line key field.
To configure the shared line settings and the number of line key on phone B via web user
interface:
1. Register the alternate account 4603_1.
Advanced Phone Features
223
(Enter the primary account 4603 in the Register Name field.)
2. Click on Advanced, and then select Shared Call Appearance from the pull-down list of
Shared Line.
3. Enter the desired number in the Number of line key field.
This field appears only if Auto Linekeys feature is enabled.
The default value is 1. In this example, the value is set to 2.
User Guide for the SIP-T48S IP Phone
224
4. Click Confirm to accept the change.
The phone B will automatically configure the line keys from the first unused DSS key, according
to the configured number in the Number of line key field.
Configuring private hold soft key or private hold key
Public hold allows any shared line to retrieve the held call. Private hold only allows the hold
party to retrieve the held call. For example, you can retrieve the held call on either phone A or
phone B when you place a call on public hold; you can retrieve the held call only on phone A
when you place a call on private hold on phone A. By default, the private hold soft key isn’t
displayed on the touch screen. You need to configure either the private hold soft key or a
private hold key before you place the call on private hold.
To configure the private hold soft key via web user interface:
1. Click on Settings->Softkey Layout.
2. Select Enabled from the pull-down list of Custom Softkey.
3. Select On Talk from the pull-down list of Call States.
4. Select PriHold from the Unselected Softkeys column and then click .
The PriHold appears in the Selected Softkeys column.
5. Click Confirm to accept the change.
Note
To configure a private hold key via phone user interface:
1. Tap ->Features->DSS Keys.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Private Hold from the pull-down list.
Configuring the private hold soft key may affect the softkey layout in the Talking state. Contact
your administrator for more information.
Advanced Phone Features
225
4. (Optional.) Enter the string that will appear on the touch screen in the Label field.
5. Tap the Save soft key to accept the change or to cancel.
Configuring call pull feature
Call pull feature allows users to retrieve an existing call from another shared phone that is in
active or public hold status.
To configure the call pull feature access code via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Enter the call pull feature access code (e.g., *11) in the Call Pull Feature Access Code field.
4. Click Confirm to accept the change.
The phone will dial out “*11” automatically when you tap the Call Pull soft key.
User Guide for the SIP-T48S IP Phone
226
Using SCA Feature on the IP Phone
This section provides you with detailed information on using the SIP-T48S IP phone in a SCA
Hybrid Key System scenario. In a SCA Hybrid Key System scenario, the status of the line key icon
which associates with a shared line will change. For more information on line key icon indicators,
refer to Line Key Icons on page 4.
You can do the following using the IP phone in a SCA Hybrid Key System scenario:
Placing calls
Answering calls
Placing a call on hold
Retrieving a held call
Barging in an active call
Call Pull
Placing Calls
You can have one call or multiple calls on the shared line.
To place a call on the shared line:
Do one of following:
- Enter the desired number using the keypad when the phone is idle. Press , , or
tap Send.
The phone will dial the entered number using the first line key.
- Tap the line key when the phone is idle to enter the dialing screen.
Enter the desired number using the keypad and then press , , or tap Send.
The phone will dial the entered number using the selected line key.
To place multiple calls on the shared line:
You can have more than one call on the shared line. To place a new call when there is an active
call on the line key 1 of phone A, do one of the following on phone A:
- Press or tap the Hold soft key. The original call is placed on hold.
Tap the New Call soft key to enter the dialing screen.
Enter the desired number using the keypad.
Press , , or tap Send.
Phone A will dial the entered number using the line key 2 automatically.
- Tap the line key. The original call is placed on hold.
Enter the desired number using the keypad.
Press , , or tap Send.
Advanced Phone Features
227
Phone A will dial the entered number using the selected line key.
Answering Calls
You can have one call or multiple calls on the shared line. Incoming calls will be distributed
evenly among the available line keys.
To answer a call on the shared line:
When an incoming call arrives on the shared line, the phone A and phone B will ring
simultaneously, and the icon indicators of the line key 1 on both phone A and phone B will
become and flashing. You can answer the incoming call on either phone A or phone B but
not both.
Do one of the following on phone A or phone B:
- Tap the line key 1, , or tap the Answer soft key on phone A.
The icon indicators of the line key 1 on phone A and phone B will become and solid.
- Tap the line key 1, , or tap the Answer soft key on phone B.
The icon indicators of the line key 1 on phone A and phone B will become and solid.
To answer multiple calls on the shared line:
An incoming call arrives on the shared line when there is an active call on phone A’s line key 1.
The icon indicators of the line key 2 on both phone A and phone B will become and
flashing. You can answer the incoming call on either phone A or phone B. The touch screen of
phone A displays the information of the incoming call (e.g., “Incoming Call: pbx.yealink.com”).
Note
Do one of the following on phone A:
- Tap the line key 2. Phone B stops ringing.
Make sure call waiting feature is enabled on phone A. For more information, refer to Call Waiting
on page 164.
User Guide for the SIP-T48S IP Phone
228
- Tap the Answer soft key. Phone B stops ringing.
- Tap the incoming call item.
Press or tap the Answer soft key. Phone B stops ringing.
The incoming call is answered and the original call is placed on hold. The icon indicators of the
line key 1 on phone A and phone B will become and solid indicating that there is the held
call on the line key 1. The icon indicators of the line key 2 on phone A and phone B will become
and solid indicating that there is an active call on the line key 2.
You can also answer the call on phone B. Do one of the following on phone B:
- Tap the line key 2. Phone A stops ringing.
- Press or tap the Answer soft key. Phone A stops ringing.
The icon indicators of the line key 2 on phone A and phone B will become and solid
indicating that there is an active call on the line key 2. Meanwhile, the icon indicators of the line
key 1 phone A and phone B will become and solid indicating that there is the held call on
the line key 1.
Note
Placing a Call on Hold
To place a call on public hold:
1. Press or tap the Hold soft key on phone A when party A and party C are talking.
The icon indicators of line key 1 on phone A and phone B will become .
If the number of incoming calls is greater than the configured line keys, the line keys will be used
by sequence circulation.
Advanced Phone Features
229
To place a call on private hold:
1. Tap the PriHold soft key or private hold key on phone A when there is an active call on the
shared line (You may need to tap the More soft key to see the PriHold soft key).
The icon indicators of line key 1 on phone A will become when the shared line call is
placed on private hold.
Retrieving a Held Call
To retrieve a call placed on public hold:
You can retrieve the public held call on either phone A or phone B.
To retrieve the call on phone A:
1. Tap , press or tap the Resume soft key.
The conversation between phone A and phone C is retrieved.
To retrieve the call on phone B:
Do one of the following:
- Tap .
- Long tap the desired line key.
User Guide for the SIP-T48S IP Phone
230
The Cancel, Call Pull, New Call and Retrieve soft keys appear on the touch screen.
Tap the Retrieve soft key to retrieve the call.
The conversation is established between phone B and phone C, phone A disconnects the call.
And the line key icon on phone A and phone B will become .
To retrieve a call placed on private hold:
The private held call can be only retrieved by the hold party (party A).
Do the following:
1. Tap , press or tap the Resume soft key on phone A.
The conversation between phone A and phone C is retrieved.
Barging In an Active Call
To interrupt the active call on the shared line:
If phone A has only one active call, do the following:
1. Long tap the desired line key on phone B.
Advanced Phone Features
231
The Cancel, Call Pull, New Call and Barge In soft keys appear on the touch screen of
phone B.
2. Tap the Barge In soft key to interrupt the active call of phone A.
Party B will set up a conference call with the other parties in the active call.
3. Press , tap the Hold soft key or the End Call soft key.
- If any party in the conference call presses or taps the Hold soft key, two-way
voice can be heard between the remaining parties.
- If party A or party B taps the End Call soft key, the remaining parties are still connected.
If the other party (not the shared line party) taps the End Call soft key, the conference
call is ended.
You can also tap the line key with the solid red icon indicator on phone B to set up a conference
call with the other parties in the active call.
If phone A has more than one call, do the following:
1. Long tap the desired line key on phone B.
The list of calls appears on the touch screen of phone B.
2. Tap the item to select the active call.
User Guide for the SIP-T48S IP Phone
232
The Cancel, Call Pull, New Call and Barge In soft keys appear when the active call is
highlighted.
3. Tap the Barge In soft key to interrupt the active call of phone A.
Party B may hear a warning tone and then set up a conference call with the other parties of
the active call.
4. Press , tap the Hold soft key or the End Call soft key.
- If any party in the conference call presses , taps the Hold soft key, two-way voice
can be heard between the remaining parties.
- If party A or party B taps the End Call soft key, the remaining parties are still connected.
If the other party (not the shared line party) taps the End Call soft key, the conference
call is ended.
Call Pull
Call pull feature allows users to retrieve an existing call from another shared phone that is in
active or hold status. For example, when there is a call between phone A and phone C, you can
use call pull feature on phone B to retrieve this call from phone A. Then the call is established
between phone B and phone C.
To retrieve a call from another shared phone:
If there is an active call between phone A and phone C, do the following:
1. Long tap the desired line key on phone B.
Advanced Phone Features
233
The Cancel, Call Pull, New Call and Barge In soft keys appear on the touch screen of
phone B.
2. Tap the Call Pull soft key.
The active call has been retrieved from the phone A successfully.
If there is a held call between phone A and phone C, do the following:
1. Long tap the desired line key on phone B.
The Cancel, Call Pull, New Call and Retrieve soft keys appear on the touch screen of
phone B.
2. Tap the Call Pull soft key.
The held call has been retrieved from the phone A successfully.
Bridged Line Appearance (BLA)
BLA allows users to share a SIP line on two or more IP phones. Users can monitor the specific
extension (BLA number) for status changes on each IP phone. To use this feature, a BLA group
should be pre-configured on the server and one of them is specified as a BLA number. BLA
depends on support from a SIP server.
User Guide for the SIP-T48S IP Phone
234
In the following figure, the first line is private and the second line is shared:
Any IP phone can be used to originate or receive calls on the bridged line. An incoming call to
the BLA number can be presented to multiple phones in the group simultaneously. The
incoming call can be answered on any IP phone of the group but not all.
Configuring BLA Feature on the IP Phone
You can share a BLA number on two or more phones. For example, phone A registers the
account 14019833020 and assigns BLA number, phone B registers the account 10462190020
and assigns BLA number, phone C registers the account 14755608020. Phone A and phone B
share the BLA number 14084588327.
Advanced Phone Features
235
To register an account and configure BLA feature on phone A via web user interface:
1. Register the account 14019833020.
2. Click on Advanced, and then select Draft BLA from the pull-down list of Shared Line.
3. Enter the desired number in the BLA Number field.
4. Click Confirm to accept the change.
User Guide for the SIP-T48S IP Phone
236
To register an account and configure BLA feature on phone B via web user interface:
1. Register the account 10462190020.
2. Click on Advanced, and then select Draft BLA from the pull-down list of Shared Line.
3. Enter the desired number in the BLA Number field.
4. Click Confirm to accept the change.
Advanced Phone Features
237
Using BLA Feature on the IP Phone
This section provides you with detailed information on using the SIP-T48S IP phone in a BLA
scenario. In a BLA scenario, the status of the line key icon which associates with a bridged line
will change. For more information on line key icon indicators, refer to Icon indicator (associated
with a bridged line) on page 8.
You can do the following using the IP phone in a BLA scenario:
Placing calls
Answering calls
Place a call on hold
Retrieving a held call
Placing Calls
You can have one call or multiple calls on the bridged line.
To place a call on the bridged line:
Do one of following:
- Enter the desired number using the keypad when the phone is idle.
Press , , or tap Send.
The phone will dial the entered number.
- Tap the line key when the phone is idle to enter the dialing screen.
Enter the desired number using the keypad and then press , , or tap Send.
The phone will dial the entered number.
To place multiple calls on the bridged line:
You can have more than one call on the bridged line. To place a new call when there is an active
call on phone A, do one of the following on the phone A:
- Press or tap the Hold soft key. The original call is placed on hold.
Tap the New Call soft key to enter the dialing screen.
Enter the desired number using the keypad.
Press , , or tap Send.
Phone A will dial the entered number.
- Tap the line key. The original call is placed on hold.
Enter the desired number using the keypad.
Press , , or tap Send.
Phone A will dial the entered number.
User Guide for the SIP-T48S IP Phone
238
Answering Calls
When the phone C dials the BLA number “14084588327”, an incoming call will arrive on the
bridged line. The phone A and phone B ring simultaneously. You can answer the incoming call
on either phone A or phone B but not both.
Do one of the following on phone A or phone B:
- Press , or tap the Answer soft key on phone A.
Phone B stops ringing. The icon indicator of the line key on the phone A become and
prompts “Talking”. At the meanwhile, the icon indicator of the line key on the phone B
become and prompts “Talking” indicating that there is an active call on the phone A.
- Press , or tap the Answer soft key on phone B.
Phone A stops ringing. The icon indicator of the line key on the phone B become and
prompts “Talking”. At the meanwhile, the icon indicator of the line key on the phone A
become and prompts “Talking” indicating that there is an active call on the phone B.
Placing a Call on Hold
To place a call on hold:
1. Press or tap the Hold soft key on phone A when party A and party C are talking.
The icon indicator of the line key on the phone A and phone B become and
prompt ”Public Hold” when the bridged line call is placed on hold.
Retrieving a Held Call
If there is a held call between phone A and phone C, you can retrieve a held call on either phone
A or phone B.
To retrieve the held call on phone A:
2. Tap , press or tap the Resume soft key on the phone A.
The conversation between phone A and phone C is retrieved.
To retrieve the held call on phone B:
1. Tap on phone B.
The conversation is established between phone B and phone C, phone A disconnects the
call.
Messages
Short Message Service (SMS)
You can send and receive text messages using the SIP-T48S IP phone. New text messages can
be indicated both acoustically and visually. When receiving a new text message, the phone will
Advanced Phone Features
239
play a warning tone. The power indicator LED will slowly flash red, and the touch screen will
prompt “n New Text Message(s)” (“n” indicates the number of unread text messages. e.g., 1 New
Text Message(s)) and an icon .
Note
You can store text messages in your phone’s Inbox, Sentbox, Outbox or Draftbox. Each of the
boxes can store up to 100 text messages. If the number of the text messages in one box is more
than 100, the phone will directly delete the oldest text message in the box.
Note
To read a text message:
1. Tap ->Message->Text Message->Inbox.
SMS is not available on all servers. Contact your system administrator for more information.
When the phone receives a text message, the text message prompt window will pop up by
default, if you want to disable the feature, contact your system administrator for more
information.
User Guide for the SIP-T48S IP Phone
240
2. Tap the desired text message to read.
Note
To send a text message:
1. Tap ->Message->Text Message->New Message.
2. Compose the new text message.
You can tap the IME soft key to change the input mode.
3. Tap the gray box of the From field, and then select the desired account from the pull-down
list.
4. Enter the number you want to send the message to in the To field.
5. Tap the Send soft key to send message or to cancel.
You can also tap the Save soft key to save the text message to the draftbox.
Sending a text message is configurable via web user interface at the path Features->SMS.
To reply a text message:
1. Tap ->Message->Text Message->Inbox.
2. Select the desired message and then tap the Reply soft key.
3. Compose the new text message.
If the phone prompts receiving new text messages, you can also tap View to read the new
messages directly.
Advanced Phone Features
241
You can tap the IME soft key to change the input mode.
4. Tap the Send soft key after completing the content.
5. Check the From and To fields, and then tap the Send soft key.
To delete a text message:
1. Tap ->Message->Text Message->Inbox (Sentbox, Outbox or Draftbox).
2. Tap the desired message and then tap the Delete soft key.
User Guide for the SIP-T48S IP Phone
242
The touch screen prompts “Delete this Message?”.
3. Tap OK to delete this message or Cancel to cancel.
You can also delete all text messages by tapping the Delete All soft key. For more information,
refer to the above steps.
Note
Voice Mail
You can leave voice mails for someone else using the SIP-T48S IP phone. You can also listen to
the voice mails that are stored in a voice mailbox. This feature is set up on the server side. It is
not available on all servers.
When receiving a new voice mail, the phone will play a warning tone. The power indicator LED
will slowly flash red, and the touch screen will prompt “n New Voice Mail(s)” (“n” indicates the
number of unread voice messages, e.g., 19 New Voice Mail(s)) and an icon .
You can also delete a specific message by pressing the Delete soft key after viewing.
Advanced Phone Features
243
If the voice mail pop-up message box disappears, it won't pop up again unless the user receives
a new voice mail or the user re-registers the account that has unread voice mail(s).
Note
To leave a voice mail:
You can leave a voice mail for someone else when he/she is busy or inconvenient to answer the
call. Follow the voice prompt from the system server to leave a voice mail, and then hang up.
To configure voice mail access codes via phone user interface:
1. Tap ->Message->Set Voice Mail Code.
2. Enter the voice mail access code (e.g., *4) in the desired account field.
You can tap the IME soft key to change the input mode.
3. Tap the Save soft key to accept the change or to cancel.
Note
To listen to voice mails:
1. When the touch screen prompts that the phone receives a new voice mail, you can press
or tap Connect to dial out the voice mail access code.
2. Follow the voice prompt to listen to your voice mails.
You can tap the icon when the phone is idle to open the dialog box, and then tap Connect.
Note
You can configure the phone not to display the pop-up prompt, contact your system
administrator for more information.
The icon on the status bar has a counter indicating the number of messages you haven’t
heard yet.
Voice mail access codes must be predefined on the system server. Contact your system
administrator for the more information.
Before listening to voice mails, ensure that the voice mail access code has been configured.
User Guide for the SIP-T48S IP Phone
244
To view the voice mail via phone user interface:
1. Tap ->Message->View Voice Mail.
The touch screen displays the amount of new and old voice mails.
You can tap the account to listen to voice mails.
Message Waiting Indicator (MWI)
The SIP-T48S IP phone supports MWI when receiving a new voice message. If someone leaves
you a voice mail, you will receive a message waiting indicator. MWI will be indicated in three
ways: a warning tone, an indicator message (including a voice mail icon) on the touch screen,
and the power indicator LED slowly flashes red. This will be cleared when you retrieve all voice
mails or delete them.
The MWI service is unsolicited for some servers, so the SIP-T48S IP phone only handles the MWI
messages sent from the server. But for other servers, the MWI service is solicited, so the
SIP-T48S IP phone must enable subscription for MWI.
Note
The MWI subscription parameters you need to know:
Options
Description
Subscribe for MWI
Enable or disable a subscription for MWI service.
MWI Subscription Period
Period of MWI subscription. The IP phone sends a refresh
SUBSCRIBE request before initial subscription expires.
Subscribe MWI To Voice
Mail
Enable or disable a subscription to the voice mail number
for MWI service.
To use this feature, you should also configure the voice
MWI service is not available on all servers. Contact your system administrator for more
information.
Advanced Phone Features
245
Options
Description
mail number.
Note
To configure subscribe for MWI via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Select Enabled from the pull-down list of Subscribe for MWI.
4. Enter the period time in the MWI Subscription Period(Seconds) field.
5. Click Confirm to accept the change.
The IP phone will subscribe to the account number for MWI service by default.
To enable subscribe MWI to voice mail via web user interface:
1. Click on Account->Advanced.
2. Select the desired account from the pull-down list of Account.
3. Select Enabled from the pull-down list of Subscribe for MWI.
4. Select Enabled from the pull-down list of Subscribe MWI To Voice Mail.
The phone will send SUBSCRIBE messages for MWI service to the account or the voice number
MWI service depending on the server. Contact your system administrator for more information.
User Guide for the SIP-T48S IP Phone
246
5. Enter the desired voice mail number in the Voice Mail field.
6. Click Confirm to accept the change.
The IP phone will subscribe to the voice mail number for MWI service using Subscribe MWI To
Voice Mail.
Note
MWI subscription is configurable via web user interface only.
Regulatory Notices
247
Regulatory Notices
Service Agreements
Contact your Yealink Authorized Reseller for information about service agreements applicable
to your product.
Limitations of Liability
TO THE FULL EXTENT ALLOWED BY LAW, YEALINK EXCLUDES FOR ITSELFAND ITS SUPPLIERS
ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR
INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR
FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR
OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE,INSTALLATION,
MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS,EVEN IF
YEALINK OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE
PURCHASERICE PAID, AT YEALINK’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES
WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL
PURPOSE.
Safety Instructions
Save these instructions. Read these safety instructions before use!
The following basic safety precautions should always be followed to reduce the risk of fire,
electrical shock, and other personal injury.
General Requirements
Before you install and use the device, read the safety instructions carefully and
observe the situation during operation.
During the process of storage, transportation, and operation, please always keep
the device dry and clean.
During the process of storage, transportation, and operation, please avoid collision
and crash of the device.
Please do not attempt to dismantle the device by yourself. In case of any
discrepancy, please contact the appointed maintenance center for repair.
Without prior written consent, no organization or individual is permitted to make
any change to the structure or the safety design of the device. Yealink is under no
circumstances liable to consequences or legal issues caused by such changes.
Please refer to the relevant laws and statutes while using the device. Legal rights of
others should also be respected as well.
Environmental Requirements
Place the device at a well-ventilated place. Do not expose the device under direct
sunlight.
Keep the device dry and free of dust.
Place the device on a stable and level platform.
User Guide for the SIP-T48S IP Phone
248
Please do not place heavy objects on the device in case of damageand deformation
caused by the heavy load.
Keep at least 10 cm between the device and the closest object for heat dissipation.
Do not place the device on or near any inflammable or fire-vulnerable object, such
as rubber-made materials.
Keep the device away from any heat source or bare fire, such as a candle or an
electric heater.
Keep the device away from any household appliance with a strong magnetic field or
electromagnetic field, such as a microwave oven or a refrigerator.
Operating Requirements
Do not let a child operate the device without guidance.
Do not let a child play with the device or any accessory in case of accidental
swallowing.
Please only use the accessories provided or authorized by the manufacturer.
The power supply of the device must meet the requirements of the input voltage of
the device. Please use the provided surge protection power socket only.
Before plugging or unplugging any cable, make sure that your hands are
completely dry.
Do not spill liquid of any kind on the product or use the equipment near water, for
example, near a bathtub, washbowl, kitchen sink, wet basement or near a swimming
pool.
Do not tread on, pull, or over-bend any cable in case of malfunction of the device.
During a thunderstorm, stop using the device and disconnect it from the power
supply. Unplug the power plug and the Asymmetric Digital Subscriber Line (ADSL)
twisted pair (the radio frequency cable) to avoid lightning strike.
If the device is left unused for a rather long time, disconnect it from the power
supply and unplug the power plug.
When there is smoke emitted from the device, or some abnormal noise or smell,
disconnect the device from the power supply, and unplug the power plug
immediately. Contact the specified maintenance center for repair.
Do not insert any object into equipment slots that is not part of the product or
auxiliary product.
Before connecting a cable, connect the grounding cable of the device first. Do not
disconnect the grounding cable until you have disconnected all other cables.
Cleaning Requirements
Before cleaning the device, stop using it and disconnect it from the power supply.
Use a piece of soft, dry and anti-static cloth to clean the device.
Keep the power plug clean and dry. Using a dirty or wet power plug may lead to
electric shock or other perils.
Appendix
249
Appendix
Appendix A – Time Zones
Time Zone
Time Zone Name
-11
Samoa
-10
United States-Hawaii-Aleutian, United States-Alaska-Aleutian
-9:30
French Polynesia
-9
United States-Alaska Time
-8
Canada(Vancouver,Whitehorse), Mexico(Tijuana,Mexicali), United
States-Pacific Time
-7
Canada(Edmonton,Calgary), Mexico(Mazatlan,Chihuahua), United
States-MST no DST, United States-Mountain Time
-6
Canada-Manitoba(Winnipeg), Chile(Easter Islands), Mexico(Mexico
City,Acapulco), United States-Central Time
-5
Bahamas(Nassau), Canada(Montreal,Ottawa,Quebec), Cuba(Havana),
United States-Eastern Time
-4:30
Venezuela(Caracas)
-4
Canada(Halifax,Saint John), Chile(Santiago), Paraguay(Asuncion),
United Kingdom-Bermuda(Bermuda), United Kingdom(Falkland
Islands), Trinidad&Tobago
-3:30
Canada-New Foundland(St.Johns)
-3
Argentina(Buenos Aires), Brazil(DST), Brazil(no DST),
Denmark-Greenland(Nuuk)
-2:30
Newfoundland and Labrador
-2
Brazil(no DST)
-1
Portugal(Azores)
0
Denmark-Faroe Islands(Torshavn), GMT, Greenland, Ireland(Dublin),
Morocco, Portugal(Lisboa,Porto,Funchal), Spain-Canary Islands(Las
Palmas), United Kingdom(London)
+1
Albania(Tirane), Austria(Vienna), Belgium(Brussels),
Caicos, Chad, Croatia(Zagreb), Czech Republic(Prague),
Denmark(Kopenhagen), France(Paris), Germany(Berlin),
Hungary(Budapest), Italy(Rome), Luxembourg(Luxembourg),
Macedonia(Skopje), Namibia(Windhoek), Netherlands(Amsterdam),
Spain(Madrid)
+2
Estonia(Tallinn), Finland(Helsinki), Gaza Strip(Gaza), Greece(Athens),
Israel(Tel Aviv), Jordan(Amman), Latvia(Riga), Lebanon(Beirut),
Moldova(Kishinev), Romania(Bucharest), Russia(Kaliningrad),
Syria(Damascus), Turkey(Ankara), Ukraine(Kyiv, Odessa)
+3
East Africa Time, Iraq(Baghdad), Russia(Moscow)
+3:30
Iran(Teheran)
+4
Armenia(Yerevan), Azerbaijan(Baku), Georgia(Tbilisi),
Kazakhstan(Aktau), Russia(Samara)
+4:30
Afghanistan(Kabul)
+5
Kazakhstan(Aqtobe), Kyrgyzstan(Bishkek), Pakistan(Islamabad),
Russia(Chelyabinsk)
+5:30
India(Calcutta)
+5:45
Nepal(Katmandu)
+6
Kazakhstan(Astana, Almaty), Russia(Novosibirsk,Omsk)
+6:30
Myanmar(Naypyitaw)
+7
Russia(Krasnoyarsk), Thailand(Bangkok)
+8
Australia(Perth), China(Beijing), Russia(Irkutsk, Ulan-Ude),
Singapore(Singapore)
+8:45
Eucla
+9
Japan(Tokyo), Korea(Seoul), Russia(Yakutsk,Chita)
User Guide for the SIP-T48S IP Phone
250
Time Zone
Time Zone Name
+9:30
Australia(Adelaide), Australia(Darwin)
+10
Australia(Brisbane), Australia(Hobart),
Australia(Sydney,Melboume,Canberra), Russia(Vladivostok)
+10:30
Australia(Lord Howe Islands)
+11
New Caledonia(Noumea), Russia(Srednekolymsk Time)
+11:30
Norfolk Island
+12
New Zealand(Wellington,Auckland), Russia(Kamchatka Time)
+12:45
New Zealand(Chatham Islands)
+13
Tonga(Nukualofa)
+13:30
Chatham Islands
+14
Kiribati
Appendix
251
Appendix B – Menu Structure
User Guide for the SIP-T48S IP Phone
252
Index
253
Index
A
About This Guide v
Accessing the Remote Phone Book 90
Account Management 118
Account Registration 118
Activating the Bluetooth Mode 101
Activating the Wi-Fi Mode 27
Adding a Contact to the Local
Directory/Blacklist 93
Adding Contacts 74
Adding Groups 71
Administrator Password 59
Advanced Phone Features 183
Anonymous Call 179
Anonymous Call Rejection 180
Answering Calls 134
Appendix 249
Appendix A – Time Zones 249
Appendix B – Menu Structure 251
Area Code 125
Attended Transfer 164
Audio Settings 63
Auto Answer 138
Auto Redial 140
Automatic Call Distribution (ACD) 216
B
Backlight 45
Barging In an Active Call 230
Basic Call Features 131
Basic Network Settings 24
Blacklist 88
BLF List 186
Blind Transfer 162
Block Out 126
Bluetooth Headset 100
Bridged Line Appearance (BLA) 233
Busy Lamp Field (BLF) 183
C
Call Completion 142
Call Forward 152
Call History Management 91
Call Hold/Resume 146
Call Mute 144
Call Park/Retrieve 168
Call Pull 232
Call Pickup 175
Call Recording 192
Call Transfer 162
Call Waiting 164
CE Mark Warning ii
Conference 165
Configuring a BLF Key 183
Configuring a Record Key 201
Configuring a URL Record Key 201
Configuring an Access URL 90
Configuring an Intercom Key 205
Configuring BLA Feature on the IP Phone 234
Configuring Directed Call Pickup Code 186
Configuring SCA Feature on the IP Phone
220
Configuring the BLF Feature on the IP Phone
183
Configuring the Idle Timeout 52
Configuring the Intercom Feature on the IP
Phone 205
Configuring the Office Hour 51
Configuring the Screen Saver 49
Configuring Transfer Mode on DSS Key 188
Configuring Visual and Audio Alert for BLF
pickup 184
Connecting to the Wired Network 22
Connecting to the Wireless Network 27
Contact Management 67
Contrast 54
Customizing Your Phone 43
User Guide for the SIP-T48S IP Phone
254
D
Deactivating the Bluetooth Mode 106
Deactivating the Wi-Fi Mode 34
Default Account 119
Deactivating the Wireless Network Connection
33
Declaration of Conformity ii
Deleting Contacts 79
Deleting Groups 79
Deleting History Records 94
Deleting the Paired Bluetooth Headset 105
Deleting the Recorded File 199
Dial Now 123
Dial Plan 121
Directed Call Pickup 175
Directory 68
Disabling History Record 95
Disconnecting the Bluetooth Headset 105
Disconnecting the Wireless Network
Connection 32
Do Not Disturb (DND) 147
Documentation 13
Dual Headset 99
DSS Keys 107
Dsskey Wallpaper 45
Dual Headset 99
Dynamic Forwarding 161
E
Editing Contacts 78
Editing Device Information 104
Editing Groups 78
Emergency Number 127
Enabling the Power Saving 51
Ending Calls 136
Entering Data and Editing Fields 38
Ext Keys 118
F
FAC Mode 170
Feature Status Icons 3
G
General Settings 43
Getting Started 15
Group Call Pickup 177
H
Hardware Component Instructions 1
Headset Mode Activation/Deactivation 98
Headset Prior 98
Headset Use 98
Hot Desking 203
Hotline 128
I
Icon Instructions 3
Importing/Exporting Contact Lists 85
In This Guide v
Incoming Intercom Calls 206
Index 253
Intercom 205
I
Intercom 205
K
Key As Send 59
Key Tone 67
L
Language 55
Label Length 107
LED Instructions 9
Limitation of Liability 247
Line Key Icons 4
Line Keys 107
Line Key Features 109
Live Dialpad 128
Local Conference 165
Local Directory 70
Index
255
M
Managing the Saved Wireless Network 32
Manually Add a Wireless Network 30
Manually Connect to an Available Wireless
Network 28
Message Waiting Indicator (MWI) 244
Messages 238
Multicast Paging 208
Multiple Line Keys per Account 121
Music on Hold (MOH) 215
Mute a Call 145
Mute While Dialing 146
N
Navigating Menus and Fields 38
Network Conference 167
Network Connection 21
O
Optional Accessories 16
Other Icons 8
Overview 1
P
Packaging Contents 15
Pairing and Connecting the Bluetooth Headset
102
Phone Initialization 21
Phone Installation 18
Phone Lock 60
Phone Status 23
Phone User Interface 10
Picking up an Incoming Call of the Monitored
User 189
Picking up an Incoming Call of the Target
Extension 208
Placing a Call from History Records 92
Placing a Call to the Monitored User 188
Placing an Intercom Call to the Target Extension
208
Placing Calls 132
Placing Calls to Contacts 83
Playing Back Recorded Calls 197
Power Saving 50
Programable Keys 116
R
ReCall 143
Receiving RTP Stream 212
Recent Call In Dialing 136
Recording a Call 202
Recording Using a Record Key 200
Recording Using USB Flash Drive 193
Redialing Numbers 136
Registration 26
Regulatory Notices 247
Remote Phone Book 90
Replace Rule 122
Ring Tones 65
S
Safety Instructions 247
Screen Saver 47
Search Source List in Dialing 96
Searching for Contacts 84
Semi-attended Transfer 163
Sending RTP Stream 209
Service Agreements 247
Shared Call Appearance (SCA) 219
Short Message Service (SMS) 238
Static Forwarding 152
System Customizations 96
T
Table of Contents vii
Time & Date 56
Touch Screen Display 35
Transfer Mode 173
Transferring a Call to the Monitored User 189
Transparency 46
U
Uploading Contact Photos 48
User Guide for the SIP-T48S IP Phone
256
User Interfaces 10
Using BLA Features on the IP Phone 237
User Interfaces 10
Using BLA Feature on the IP Phone 237
Using BLF Feature on the IP Phone 226
Using Intercom 207
Using Multicast Paging 214
Using SCA Features on the IP Phone 226
V
Viewing History Records 92
Viewing the Bluetooth Headset Information
104
Viewing the Storage Space 199
Viewing the Wireless Network Information
31
Voice Mail 242
Volume 63
W
Warranty ii
Wallpaper 43
Wallpaper on the Idle Screen 44
Wallpaper with Dsskey Unfold 45
Web User Interface 10
WEEE Warning iii
Wi-Fi Protected Setup (WPS) 29
Wireless Network Settings 26