Yealink SIP-T2XP Service manual

Copyright
Copyright © 2013 YEALINK NETWORK TECHNOLOGY
Copyright © 2013 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.
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 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.
Declaration of Conformity
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.
CE Mark Warning
This device is marked with the CE mark in compliance with EC Directives 2006/95/EC and 2004/108/EC.
Part 15 FCC Rules
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, and
2. This device must accept any interference received, including interference that may cause undesired
operation.

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 [e-mail].

GNU GPL INFORMATION
Yealink SIP-T2xP 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 from Yealink web site:
http://www.yealink.com/GPLOpenSource.aspx?BaseInfoCateId=293&NewsCateId=293&CateId=293.

About This Guide
v
About This Guide
This guide is intended for administrators who need to properly configure, customize,
manage, and troubleshoot the IP phone system rather than the end-users. It provides
details on the functionality and configuration of the IP phones.
Many of the features described in this guide involve network settings, which could
affect the IP phone performance in the network. So an understanding of IP networking
and prior knowledge of IP telephony concepts are necessary.
Documentations
This guide covers the SIP-T28P, T26P, T22P and T20P IP phones. The following related
documents for SIP-T2xP IP phones are available:
Quick Installation Guides, which describe how to assemble IP phones.
Quick Reference Guides, which describe the most basic features available on IP
phones.
User Guides, which describe the basic and advanced features available on IP
phones.
Auto Provisioning Guide, which describes how to provision IP phones using the
configuration files.
<y0000000000xx>.cfg and <MAC>.cfg template configuration files.
IP Phones Deployment Guide for BroadWorks Environments, which describes how
to configure the BroadSoft features on the BroadWorks web portal and IP phones.
For support or service, please contact your Yealink reseller or go to Yealink Technical
Support online http://www.yealink.com/Support.aspx.
In This Guide
The information detailed in this guide is applicable to the firmware version 71 or higher.
The firmware format likes x.x.x.x.rom. The second x from left must be greater than or
equal to 71 (e.g., the firmware version of SIP-T28P IP phone: [phone].rom). This
administrator guide includes the following chapters:
Chapter 1, “Product Overview”describes the SIP components and SIP IP phones.
Chapter 2, “Getting Started”describes how to install and connect IP phones and
the configuration methods.
Chapter 3, “Configuring Basic Features”describes how to configure the basic

Administrator’s Guide for SIP-T2xP IP Phones
vi
features on IP phones.
Chapter 4, “Configuring Advanced Features”describes how to configure the
advanced features on IP phones.
Chapter 5, “Configuring Audio Features”describes how to configure the audio
features on IP phones.
Chapter 6, “Configuring Security Features”describes how to configure the security
features on IP phones.
Chapter 7, “Upgrading Firmware”describes how to upgrade firmware of IP
phones.
Chapter 8, “Resource Files”describes the resource files that can be downloaded
by IP phones.
Chapter 9, “Troubleshooting”describes how to troubleshoot IP phones and
provides some common troubleshooting solutions.
Chapter 10, “Appendix”provides the glossary, reference information about IP
phones compliant with RFC 3261, SIP call flows and the sample configuration files.
Summary of Changes
This section describes the changes to this guide for each release and guide version.
Changes for Release 71, Guide Version 71.140
Major updates have occurred to the following sections:
Logo Customization on page 55
Anonymous Call on page 76
Distinctive Ring Tones on page 127
Server Redundancy on page 163
Transport Layer Security on page 207
Secure Real-Time Transport Protocol on page 213
Encrypting Configuration Files on page 215
Local Contact File on page 227
Viewing Log Files on page 231
Capturing Packets on page 234
Changes for Release 71, Guide Version 71.125
Major updates have occurred to the following sections:

About This Guide
vii
Appendix B: Time Zones on page 247
Changes for Release 71, Guide Version 71.120
Major updates have occurred to the following sections:
Configuring DSS Key on page 376
Changes for Release 71, Guide Version 71.110
The following sections are new for this version:
Hot Desking on page 155
TR-069 Device Management on page 189
IPv6 Support on page 191
Major updates have occurred to the following sections:
Configuring Network Parameters Manually on page 22
Softkey Layout on page 57
Directed Call Pickup on page 103
Distinctive Ring Tones on page 127
Automatic Call Distribution on page 143
Action URL on page 160
Server Redundancy on page 162
VLAN on page 172
Transport Layer Security on page 207
Local Contact File on page 227
Changes for Release 70, Guide Version 70
The following sections are new for this version:
Configuring Basic Network Parameters on page 19
Contrast on page 39
Backlight on page 40
Logo Customization on page 55
Softkey Layout on page 57
Key as Send on page 60
Call Log on page 64

Administrator’s Guide for SIP-T2xP IP Phones
viii
Live Dialpad on page 69
Auto Answer on page 73
Call Completion on page 74
Anonymous Call on page 76
Anonymous Call Rejection on page 77
Busy Tone Delay on page 85
Return Code When Refuse on page 86
Early Media on page 87
180 Ring Workaround on page 87
Use Outbound Proxy in Dialog on page 89
SIP Session Timer on page 90
Session Timer on page 91
Call Return on page 112
Transfer via DTMF on page 122
Intercom on page 123
Music on Hold on page 142
Automatic Call Distribution on page 143
Message Waiting Indicator on page 145
Multicast Paging on page 147
Call Recording on page 151
LLDP on page 169
VLAN on page 172
VPN on page 175
Quality of Service on page 177
Configuring Audio Features on page 195
Secure Real-Time Transport Protocol on page 213
Appendix B: Time Zones on page 247
Phone user interface for each feature
Major updates have occurred to the following sections:
Creating Dial Plan on page 31
Transport Layer Security on page 207
Encrypting Configuration Files on page 215
Troubleshooting on page 231
Web user interface for each feature

About This Guide
ix
Changes for Release 70, Guide Version 2.0
The following sections are new for this version:
Dialog-Info Call Pickup on page 110
Web Server Type on page 114
Tones on page 131
Hot Desking on page 155
Action URL on page 160
Action URI on page 159
Resource Files on page 223
Appendix C: Configuration Parameters on page 250
Appendix F: Sample Configuration File on page 441
Major updates have occurred to the following sections:
Creating Dial Plan on page 31
Phone Lock on page 45
Time and Date on page 47
Busy Lamp Field on page 138

Administrator’s Guide for SIP-T2xP IP Phones
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