Yealink SIP-T21 E2 User manual

Copyright © 2015 YEALINK NETWORK TECHNOLOGY CO., LTD
Copyright © 2015 Yealink Network Technology CO., LTD. All rights reserved. No parts of this
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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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REGARD TO THIS GUIDE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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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, and
2. This device must accept any interference received, including interference that may cause undesired
operation.

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.
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.
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Yealink SIP-T21(P) E2 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-T21(P) E2 IP phone, exquisitely designed to provide
business telephony features, such as Call Hold, Call Transfer, Busy Lamp Field, Multicast
Paging and Conference over an IP network. The difference between the SIP-T21 E2 and
SIP-T21P E2 IP phones is that only SIP-T21P E2 supports PoE.
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-T21(P) E2 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
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-T21(P) E2 IP Phone
vi

Table of Contents
vii
About This Guide ...................................................................... v
In This Guide ......................................................................................................................... v
Table of Contents.....................................................................vii
Overview .................................................................................. 1
Hardware Component Instructions.................................................................................... 1
Icon Instructions.................................................................................................................... 3
LED Instructions..................................................................................................................... 4
User Interfaces ..................................................................................................................... 5
Phone User Interface ........................................................................................................ 6
Web User Interface........................................................................................................... 6
Documentations ................................................................................................................... 8
Getting Started......................................................................... 9
Packaging Contents............................................................................................................. 9
Optional Accessories ..................................................................................................... 10
Phone Installation............................................................................................................... 11
Phone Initialization ............................................................................................................. 13
Phone Status ....................................................................................................................... 13
Basic Network Settings...................................................................................................... 15
Registration ......................................................................................................................... 17
Idle Screen.......................................................................................................................... 17
Customizing Your Phone ......................................................... 19
General Settings ................................................................................................................ 19
Contrast............................................................................................................................ 19
Backlight .......................................................................................................................... 20
Language......................................................................................................................... 20
Time & Date ..................................................................................................................... 21
Administrator Password ................................................................................................. 23
Key as Send..................................................................................................................... 24
Phone Lock....................................................................................................................... 24
Audio Settings .................................................................................................................... 27
Volume ............................................................................................................................. 27
Ring Tones ........................................................................................................................ 27

User Guide for the SIP-T21(P) E2 IP Phone
viii
Contact Management....................................................................................................... 30
Directory........................................................................................................................... 30
Local Directory ................................................................................................................ 31
Blacklist ............................................................................................................................ 41
Remote Phone Book........................................................................................................ 43
Call History Management ................................................................................................ 45
System Customizations...................................................................................................... 47
Logo Customization ........................................................................................................ 47
Headset Use.................................................................................................................... 48
DSS Keys .......................................................................................................................... 50
Account Management ................................................................................................... 59
Dial Plan ........................................................................................................................... 60
Emergency Number........................................................................................................ 66
Live Dialpad .................................................................................................................... 67
Hotline .............................................................................................................................. 68
Basic Call Features................................................................. 69
Placing Calls ....................................................................................................................... 69
Answering Calls ................................................................................................................. 71
Ending Calls........................................................................................................................ 73
Redialing Numbers ............................................................................................................ 73
Recent Call In Dialing ........................................................................................................ 74
Auto Answer ....................................................................................................................... 75
Auto Redial.......................................................................................................................... 76
Call Completion ................................................................................................................. 77
ReCall .................................................................................................................................. 78
Call Mute............................................................................................................................. 79
Call Hold/Resume............................................................................................................... 79
Do Not Disturb (DND) ........................................................................................................ 80
Call Forward ....................................................................................................................... 83
Call Transfer ........................................................................................................................ 90
Call Waiting ........................................................................................................................ 91
Conference ......................................................................................................................... 92
Local Conference............................................................................................................ 92
Network Conference ...................................................................................................... 93
Call Park .............................................................................................................................. 94
Call Pickup .......................................................................................................................... 96
Anonymous Call ............................................................................................................... 101
Anonymous Call Rejection .............................................................................................. 102
Advanced Phone Features....................................................105
Busy Lamp Field (BLF) ..................................................................................................... 105
BLF List ............................................................................................................................... 107

Table of Contents
ix
Call Recording .................................................................................................................. 109
Hot Desking ...................................................................................................................... 111
Intercom ............................................................................................................................ 113
Outgoing Intercom Calls.............................................................................................. 113
Incoming Intercom Calls .............................................................................................. 113
Using Intercom .............................................................................................................. 115
Multicast Paging............................................................................................................... 115
Sending RTP Stream ..................................................................................................... 116
Receiving RTP Stream................................................................................................... 118
Using Multicast Paging................................................................................................. 120
Music on Hold................................................................................................................... 121
Automatic Call Distribution (ACD).................................................................................. 122
Messages.......................................................................................................................... 124
Short Message Service (SMS) .................................................................................... 124
Voice Mail ...................................................................................................................... 126
Message Waiting Indicator (MWI) ............................................................................. 128
Troubleshooting .....................................................................131
Regulatory Notices ................................................................141
Service Agreements ........................................................................................................ 141
Limitations of Liability ...................................................................................................... 141
Safety Instructions ............................................................................................................ 141
Appendix A - Time Zones......................................................143
Index ......................................................................................145

User Guide for the SIP-T21(P) E2 IP Phone
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