Yealink Yealink SIP-T48G User manual

Copyright © 2014 YEALINK NETWORK TECHNOLOGY CO., LTD.
Copyright © 2014 Yealink 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 Network Technology CO., LTD. Under the law, reproducing includes
translating into another language or format.
When this publication is made available on media, Yealink 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 Network Technology CO., LTD. will not be liable for any
damages arising from use of an illegally modified or altered publication.
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 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 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.
Hereby, Yealink Network Technology CO., LTD. declares that this phone is in conformity
with the essential requirements and other relevant provisions of the CE, FCC.
This device is marked with the CE mark in compliance with EC Directives 2006/95/EC and 2004/108/EC.
This device is compliant with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired
operation.

Note: This equipment has been tested and found to comply 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 experienced radio/TV technician for help.
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.
We are striving to improve our documentation quality and we appreciate your feedback. Email your
opinions and comments to DocsFeedbac[email protected]m.

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
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 and Regulatory Notices sections in this guide
before you set up and use the SIP-T48G IP phone.
Note
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
This section describes the changes to this guide for each release and guide version.
The following section is new:
Optional Accessories on page 10
Major updates have occurred to the following sections:
DSS Keys on page 74
Shared Line, 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-T48G IP Phone
vi
Appendix A - Time Zones on page 175
The following sections are new:
BLF List on page 140
Major updates have occurred to the following sections:
LED Instructions on page 4
Ring Tones on page 34
Anonymous Call Rejection on page 135
Multicast Paging on page 149
Troubleshooting on page 163
Appendix A - Time Zones on page 175
Major updates have occurred to the following sections:
Documentations on page 7
Packaging Contents on page 9
Phone Installation on page 12
Contact Management on page 36
Placing Calls on page 98

Table of Contents
vii
About This Guide ...................................................................... v
In This Guide ....................................................................................................................v
Summary of Changes......................................................................................................v
Changes for Release 73, Guide Version 73.40 ............................................................v
Changes for Release 73, Guide Version 73.16 ...........................................................vi
Changes for Release 72, Guide Version 72.10 ...........................................................vi
Table of Contents.....................................................................vii
Overview .................................................................................. 1
Hardware Component Instructions.................................................................................1
Icon Instructions ...............................................................................................................3
LED Instructions ................................................................................................................4
User Interfaces.................................................................................................................5
Phone User Interface ....................................................................................................5
Web User Interface.......................................................................................................5
Documentations...............................................................................................................7
Getting Started......................................................................... 9
Packaging Contents.........................................................................................................9
Optional Accessories.................................................................................................. 10
Phone Installation...........................................................................................................12
Phone Initialization.........................................................................................................14
Registration ....................................................................................................................15
Touch Screen Display.....................................................................................................15
Navigating Menus and Fields.......................................................................................17
Entering Data and Editing Fields ..................................................................................18
Phone Status................................................................................................................... 19
Basic Network Settings..................................................................................................21
Customizing Your Phone ......................................................... 25
General Settings............................................................................................................ 25
Wallpaper ................................................................................................................... 25
Backlight......................................................................................................................27
Contrast.......................................................................................................................27

User Guide for the SIP-T48G IP Phone
viii
Language....................................................................................................................28
Time & Date................................................................................................................. 29
Administrator Password ............................................................................................. 32
Key as Send ................................................................................................................ 33
Audio Settings................................................................................................................33
Volume.........................................................................................................................33
Ring Tones ...................................................................................................................34
Contact Management................................................................................................... 36
Directory...................................................................................................................... 37
Local Directory............................................................................................................38
Blacklist........................................................................................................................56
Remote Phone Book...................................................................................................58
Call History Management.............................................................................................61
System Customizations.................................................................................................. 65
Headset Use ...............................................................................................................65
Bluetooth Headset...................................................................................................... 67
DSS Keys .....................................................................................................................74
Account Management ...............................................................................................84
Dial Plan ......................................................................................................................87
Live Dialpad................................................................................................................93
Hotline ......................................................................................................................... 94
Basic Call Features ................................................................. 97
Placing Calls...................................................................................................................98
Answering Calls ...........................................................................................................100
Ending Calls .................................................................................................................102
Redialing Numbers ......................................................................................................102
Recent Call In Dialing .................................................................................................. 102
Auto Answer.................................................................................................................104
Auto Redial................................................................................................................... 105
Call Completion ...........................................................................................................106
Recall ............................................................................................................................108
Call Mute...................................................................................................................... 109
Call Hold/Resume ........................................................................................................110
Do Not Disturb (DND) .................................................................................................. 110
Call Forward.................................................................................................................115
Call Transfer .................................................................................................................123
Call Waiting..................................................................................................................125
Conference...................................................................................................................126
Local Conference...................................................................................................... 126
Network Conference ................................................................................................ 127
Call Park .......................................................................................................................129
Call Pickup....................................................................................................................130
Anonymous Call...........................................................................................................134

Table of Contents
ix
Anonymous Call Rejection........................................................................................... 135
Advanced Phone Features....................................................137
Busy Lamp Field (BLF)..................................................................................................137
BLF List ..........................................................................................................................140
Call Recording.............................................................................................................. 142
Hot Desking.................................................................................................................. 144
Intercom .......................................................................................................................146
Outgoing Intercom Calls ..........................................................................................147
Incoming Intercom Calls........................................................................................... 147
Multicast Paging ..........................................................................................................149
Sending RTP Stream ................................................................................................. 149
Receiving RTP Stream...............................................................................................154
Music on Hold ..............................................................................................................155
Automatic Call Distribution (ACD) ..............................................................................156
Messages..................................................................................................................... 158
Voice Mail..................................................................................................................158
Message Waiting Indicator (MWI) ..........................................................................160
Troubleshooting .....................................................................163
Regulatory Notices ................................................................173
Service Agreements ....................................................................................................173
Limitations of Liability ..................................................................................................173
Safety Instructions........................................................................................................ 173
Appendix A - Time Zones......................................................175
Index ......................................................................................179

User Guide for the SIP-T48G IP Phone
x