Yealink Yealink SIP-T48G User manual

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Copyright
Copyright © 2017 YEALINK(XIAMEN) NETWORK TECHNOLOGY
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,
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Warranty
(1) 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.
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GNU GPL INFORMATION
Yealink SIP-T48G 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-T48G 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 in this guide before you set up and use the SIP-T48G IP phone.
See the Yealink Products Regulatory Notices guide for all regulatory and safety guidance.
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.
The following sections are new:
Mobile Contacts on page 88
Pairing and Connecting the Bluetooth-Enabled Mobile Phone on page 103
Syncing the Mobile Contacts to the IP Phone on page 104
Major updates have occurred to the following sections:
Volume on page 61
Bluetooth on page 100

User Guide for the SIP-T48G IP Phone
vi
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 108
Auto Answer on page 138
Do Not Disturb (DND) on page 148
Call Forward on page 153
Call Park/Retrieve on page 169
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 41
Screen Saver on page 45
The following sections are new:
Network Connection on page 21
Wallpaper with Dsskey Unfold on page 43
BLF ring type on page 185
Major updates have occurred to the following sections:
Icon Instructions on page 3
Basic Network Settings on page 24
Language on page 53
Volume on page 61
DSS Keys on page 108
Dial Plan on page 123
Call Mute on page 145
Do Not Disturb (DND) on page 148

About This Guide
vii
Call Transfer on page 163
Call Park on page 169
Busy Lamp Field (BLF) on page 183
Intercom on page 205
Call Recording on page 192
Multicast Paging on page 208
Major updates have occurred to the following sections:
Icon Instructions on page 3
Optional Accessories on page 16
Phone Installation on page 18
Entering Data and Editing Fields on page 38
The following section is new:
Wireless Network Settings on page 26
Major updates have occurred to the following section:
Bluetooth on page 100
The following sections are new:
Shared Call Appearance (SCA) on page 219
Bridged Line Appearance (BLA) on page 234
Major updates have occurred to the following sections:
Icon Instructions on page 3
LED Instructions on page 9
Web User Interface on page 10
Call Forward on page 153

User Guide for the SIP-T48G IP Phone
viii
The following section is new:
Phone Lock on page 58
Emergency Number on page 129
Short Message Service (SMS) on page 239
Major updates have occurred to the following sections:
Icon Instructions on page 3
User Interfaces on page 10
Bluetooth on page 100
DSS Keys on page 108
Anonymous Call Rejection on page 181
Intercom on page 205
Multicast Paging on page 208
Appendix on page 249
The following section is new:
Optional Accessories on page 16
Major updates have occurred to the following sections:
DSS Keys on page 108
Appendix on page 249
The following section is new:
BLF List on page 190
Major updates have occurred to the following sections:
LED Instructions on page 9
Ring Tones on page 63
Anonymous Call Rejection on page 181
Multicast Paging on page 208
Appendix on page 249

About This Guide
ix
Major updates have occurred to the following sections:
Documentations on page 13
Packaging Contents on page 15
Phone Installation on page 18
Contact Management on page 66
Placing Calls on page 134

User Guide for the SIP-T48G IP Phone
x

Table of Contents
xi
Table of Contents
About This Guide ........................................................................... v
In This Guide ..............................................................................................................................................................v
Summary of Changes.............................................................................................................................................v
Changes for Release 81, Guide Version 81.90..........................................................................................v
Changes for Release 81, Guide Version 81.70.........................................................................................vi
Changes for Release 81, Guide Version 81.20.........................................................................................vi
Changes for Release 81, Guide Version 81.10.........................................................................................vi
Changes for Release 80, Guide Version 80.95........................................................................................vii
Changes for Release 80, Guide Version 80.80........................................................................................vii
Changes for Release 80, Guide Version 80.60........................................................................................vii
Changes for Release 80, Guide Version 80.20.......................................................................................viii
Changes for Release 73, Guide Version 73.40.......................................................................................viii
Changes for Release 73, Guide Version 73.16.......................................................................................viii
Changes for Release 72, Guide Version 72.10.........................................................................................ix
Table of Contents..........................................................................xi
Overview .........................................................................................1
Hardware Component Instructions ..................................................................................................................1
Icon Instructions.......................................................................................................................................................3
Feature Status Icons............................................................................................................................................3
Line Key Icons........................................................................................................................................................4
Other Icons.............................................................................................................................................................9
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

User Guide for the SIP-T48G IP Phone
xii
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
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.............................................................41
General Settings .................................................................................................................................................... 41
Wallpaper............................................................................................................................................................. 41
Transparency ...................................................................................................................................................... 44
Screen Saver........................................................................................................................................................ 45
Power Saving...................................................................................................................................................... 48
Backlight............................................................................................................................................................... 51
Contrast ................................................................................................................................................................ 52
Language.............................................................................................................................................................. 53
Time & Date........................................................................................................................................................ 54
Administrator Password................................................................................................................................. 57
Key As Send ........................................................................................................................................................ 57
Phone Lock.......................................................................................................................................................... 58
Audio Settings........................................................................................................................................................ 61
Volume.................................................................................................................................................................. 61
Ring Tones........................................................................................................................................................... 63
Key Tone............................................................................................................................................................... 65
Contact Management ......................................................................................................................................... 66
Directory............................................................................................................................................................... 66
Local Directory ................................................................................................................................................... 68
Blacklist ................................................................................................................................................................. 86
Mobile Contacts ................................................................................................................................................ 88
Remote Phone Book........................................................................................................................................ 90
Call History Management.................................................................................................................................. 92
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

Table of Contents
xiii
Search Source List in Dialing ............................................................................................................................ 96
System Customizations....................................................................................................................................... 98
Headset Use........................................................................................................................................................ 98
Bluetooth............................................................................................................................................................100
DSS Keys.............................................................................................................................................................108
Account Management ..................................................................................................................................120
Dial Plan..............................................................................................................................................................123
Emergency Number.......................................................................................................................................129
Live Dialpad.......................................................................................................................................................130
Hotline.................................................................................................................................................................130
Basic Call Features......................................................................133
Placing Calls ..........................................................................................................................................................134
Answering Calls....................................................................................................................................................136
Auto Answer .....................................................................................................................................................138
Ending Calls...........................................................................................................................................................139
Redialing Numbers.............................................................................................................................................139
Recent Call In Dialing ........................................................................................................................................139
Auto Redial............................................................................................................................................................141
Call Completion...................................................................................................................................................142
Recall........................................................................................................................................................................144
Call Mute ................................................................................................................................................................145
Mute a Call ........................................................................................................................................................145
Muting While Dialing ....................................................................................................................................146
Call Hold/Resume ...............................................................................................................................................146
Do Not Disturb (DND).......................................................................................................................................148
Call Forward ..........................................................................................................................................................153
Static Forwarding............................................................................................................................................153
Dynamic Forwarding .....................................................................................................................................162
Call Transfer...........................................................................................................................................................163
Blind Transfer....................................................................................................................................................163
Semi-attended Transfer................................................................................................................................164
Attended Transfer...........................................................................................................................................165
Call Waiting ...........................................................................................................................................................165
Conference ............................................................................................................................................................166
Local Conference ............................................................................................................................................166
Network Conference......................................................................................................................................168
Call Park/Retrieve................................................................................................................................................169
FAC Mode ..........................................................................................................................................................171
Transfer Mode..................................................................................................................................................174
Call Pickup .............................................................................................................................................................176
Directed Call Pickup.......................................................................................................................................176
Group Call Pickup ...........................................................................................................................................178
Anonymous Call ..................................................................................................................................................180

User Guide for the SIP-T48G IP Phone
xiv
Anonymous Call Rejection ..............................................................................................................................181
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
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)........................................................................................................................................216
Automatic Call Distribution (ACD) ...............................................................................................................217
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).....................................................................................................................234
Configuring BLA Feature on the IP Phone............................................................................................235
Using BLA Feature on the IP Phone.........................................................................................................237
Messages................................................................................................................................................................239
Short Message Service (SMS).....................................................................................................................239
Voice Mail ..........................................................................................................................................................243
Message Waiting Indicator (MWI) ...........................................................................................................245
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-T48G 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-T48G IP phone are the touch screen and the keypad.

User Guide for the SIP-T48G IP Phone
2
Hardware component instructions of the SIP-T48G 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
Reversible Tab
Secures the handset in the handset cradle when the IP phone
is mounted vertically. For more information on how to adjust
the reversible 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-T48G IP Phone
4
Icons
Description
Recording is paused (Using a USB flash drive)
Bluetooth mode is on
Bluetooth headset is both paired and connected
Bluetooth-Enabled mobile phone is both paired and
connected
Wi-Fi connection is successful
Wi-Fi connection fails
Wired network is unavailable
Line Key Icons
Icons appearing on the line key label are described in the following tables:
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

Overview
5
Icons
Description
Forward
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-T48G 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