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.
Copyright © 2015 YEALINK NETWORK TECHNOLOGY CO., LTD
Copyright © 2015 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.
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.
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.
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.
We are striving to improve our documentation quality and we appreciate your feedback. Email
your opinions and comments to DocsFeedback@yealink.com.
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.
Note
Shared Line, Network Directory and Network Call Log features are hidden for IP phones
Please contact
your system administrator for more information.
About This Guide
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.
in neutral firmware, which are designed for the BroadWorks environment.
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
v
User Guide for the SIP-T21(P) E2 IP Phone
vi
Table of Contents
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
vii
User Guide for the SIP-T21(P) E2 IP Phone
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
viii
Table of Contents
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
ix
User Guide for the SIP-T21(P) E2 IP Phone
x
Overview
This chapter provides the overview of the SIP-T21(P) E2 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.
The main hardware components of the SIP-T21(P) E2 IP phone are the LCD screen and
the keypad.
1
User Guide for the SIP-T21(P) E2 IP Phone
Shows information about calls, messages, soft keys,
time, date and other relevant data:
• 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
Indicates phone power status and phone status.
Use these keys to activate up to two accounts and assign
various features.
Label automatically to identify their context-sensitive
Scroll through the displayed information.
Confirms actions or answers incoming calls.
Cancels actions, rejects incoming calls, mutes or
un-mutes calls.
Indicates and accesses voice mails.
Toggles the headset mode.
Transfers a call to another party.
Redials a previously dialed number.
Toggles the hands-free speakerphone mode.
Adjusts the volume of the handset, headset, speaker,
and ringer.
Provides the digits, letters and special characters in
context-sensitive applications.
Provides ringer and hands-free (speakerphone) audio
output.
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.
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 Installation Guide for Yealink IP Phones
.
Hardware component instructions of the SIP-T21(P) E2 IP phone are:
2
Icons appearing on the LCD screen are described in the following table:
Hands-free speakerphone mode
Handset mode
Headset mode
Multi-lingual lowercase letters input mode
Multi-lingual uppercase letters input mode
Multi-lingual uppercase and lowercase
letters input mode
Call Forwarded/Forwarded Calls
Overview
3
User Guide for the SIP-T21(P) E2 IP Phone
Received Calls
Placed Calls
A call cannot be recorded
Recording starts successfully
Recording cannot be started
Recording cannot be stopped
The phone is initializing.
Fast flashing red (300ms)
The phone receives a voice mail or text message.
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.
The line is seized.
The line is in conversation.
The line receives an incoming call.
Power Indicator LED
Line key LED
4
The call is placed on hold.
Line key LED (configured as a BLF key or BLF List key)
The monitored user is idle.
Fast flashing red (200ms)
The monitored user receives an incoming call.
The monitored user is busy.
The monitored user’s conversation is placed on
hold (This LED status requires server support).
The call is parked against the monitored user’s
phone number.
The monitored user does not exist.
The above introduces the default LED status. The statuses of the power indicator LED and
Yealink_SIP-T2_Series_T4_Series_IP_Phones_Administrator_Guide.
Overview
Note
BLF key are configurable via web user interface. For more information, refer to
Two ways to customize configurations of your SIP-T21(P) E2 IP phone:
The user interface on the IP phone.
The user interface in a web browser on your PC.
The hardware components keypad and LCD 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, 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.
5
User Guide for the SIP-T21(P) E2 IP Phone
Phone User Interface
Web User Interface
--Call History Management
You can customize your phone by pressing the Menu soft key to access the phone user
interface. The Advanced Settings 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 19.
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. Enter the IP
address (e.g., http://192.168.0.10 or 192.168.0.10) in the address bar of web browser on
your PC. The default administrator user name and password are both “admin”
(case-sensitive).
The 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:
6
Overview
--Anonymous Call Rejection
--Automatic Call Distribution (ACD)
7
User Guide for the SIP-T21(P) E2 IP Phone
Basic call features and
phone customizations
Phone/Web user
interface settings
Basic call features and
advanced phone
features
The table above lists most of the feature options. Please refer to the relevant sections for
more information.
Note
The following table shows documentations available for the SIP-T21(P) E2 IP phone.
8
Getting Started
This chapter provides basic installation instructions and information for obtaining the
best performance with the SIP-T21(P) E2 IP phone. Topics include:
Packaging Contents
Phone Installation
Phone Initialization
Phone Status
Basic Network Settings
Registration
Idle Screen
If you require additional information or assistance with your new phone, contact your
system administrator.
The following components are included in your SIP-T21(P) E2 IP phone package:
SIP-T21(P) E2 IP Phone
9
User Guide for the SIP-T21(P) E2 IP Phone
Phone Stand
Handset & Handset Cord
Ethernet Cable
Quick Start Guide
Check the list before installation. If you find anything missing, contact your system
administrator.
10
The following items are optional accessories for your SIP-T21(P) E2 IP phone. You need to
purchase them separately if required.
Power Adapter
Headset
Getting Started
If your phone is already installed, proceed to Phone Initialization on page 13.
This section introduces how to install the phone:
1) Attach the stand
2) Connect the handset and optional headset
3) Connect the network and power
1) Attach the stand
11
User Guide for the SIP-T21(P) E2 IP Phone
PoE is not applicable to the SIP-T21 E2 IP phone.
2) Connect the handset and optional headset
3) Connect the network and power
You have two options for power and network connections. Your system administrator will
advise you which one to use.
AC power
Power over Ethernet (PoE)
Note
AC Power
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.
2. Connect the included or a standard Ethernet cable between the Internet port on
the phone and the one on the wall or switch/hub device port.
Power over Ethernet
With the included or a regular Ethernet cable, the SIP-T21P E2 IP phone can be powered
from a PoE-compliant switch or hub.
To connect the PoE for the SIP-T21P E2 IP phone:
1. Connect the Ethernet cable between the Internet port on the phone and an
12
Note
If in-line power is provided, you don’t need to connect the phone to the power adapter.
If your network does not use DHCP, proceed to Basic Network Settings on page 15.
Getting Started
available port on the in-line power switch/hub.
Make sure the switch/hub is PoE-compliant.
The phone can also share the network with another network device such as a PC
(personal computer). This is an optional connection.
Important! Do not remove power from the phone while it is updating firmware and
Note
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 LCD screen
displays “Welcome Initializing…please wait” during this process.
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.
You can view phone status via phone user interface or web user interface.
Available information of phone status includes:
Network status (e.g., IPv4 Status, IPv6 Status, IP Mode and MAC address).
Phone status (e.g., Product Name, Hardware, Firmware, Product ID, MAC address
and Device Cert).
13
User Guide for the SIP-T21(P) E2 IP Phone
You can view device certificate status via phone user interface only.
Account status (e.g., register status of SIP accounts).
Note
To view the phone status via phone user interface:
1. Press , or press Menu->Status.
2. Press or to scroll through the list and view the specific information.
To view the phone status via web user interface:
1. Open a web browser of your computer.
2. Enter the IP address in the browser’s address bar, and then press Enter.
3. Enter the user name (admin) and password (admin) in the login page.
4. Click Confirm to login.
14
Getting Started
The phone status is displayed on the first page of the web user interface.
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.
To configure the IP address mode via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
2. Press or , or the Switch soft key to select IPv4, IPv6 or IPv4 & IPv6 from the IP
Mode field.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
To configure a static IPv4 address via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
Make sure that the IP address mode is configured as IPv4 or IPv4 & IPv6.
2. Press to select the IPv4 and then press the Enter soft key.
15
User Guide for the SIP-T21(P) E2 IP Phone
3. Press to select Static IPv4 Client and then press the Enter soft key.
4. Enter the desired values in the IPv4, Subnet Mask, Default Gateway, IPv4 Pri.DNS
and IPv4 Sec.DNS fields respectively.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
To configure a static IPv6 address via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
2. Press to select IPv6 and then press the Enter soft key.
3. Press to select Static IPv6 Client and then press the Enter soft key.
4. Enter the desired values in the IPv6 IP, IPv6 IP Prefix, Default Gateway, IPv6 Pri.DNS
and IPv6 Sec.DNS fields respectively.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
If you are using an xDSL modem, you can connect your phone to the Internet via PPPoE
mode. Set the WAN port as a PPPoE port. The PPPoE port will perform a PPP negotiation
to obtain the IP address. Contact your system administrator for the PPPoE user name
and password.
To configure PPPoE via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
16
2. Press to select IPv4 and then press the Enter soft key.
3. Press to select PPPoE IPv4 Client and then press the Enter soft key.
Note
Wrong network settings may result in inaccessibility of your phone and may also have an
contact your system administrator.
Getting Started
5. Enter the user name and password in the corresponding fields.
6. Press the Save soft key to accept the change or the Back soft key to cancel.
impact on your network performance. For more information on these parameters,
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-T21(P) E2 IP
phone supports up to 2 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 59.
If the phone has successfully started up, the idle LCD screen will be displayed as below.
The idle screen displays the label of current account, time and date, and four soft keys.
17
User Guide for the SIP-T21(P) E2 IP Phone
18
Customizing Your Phone
You can customize your SIP-T21(P) E2 IP phone by personally configuring certain settings,
for example, contrast, language and time & date. 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
System Customizations
If you require additional information or assistance with your new phone, contact your
system administrator.
You can configure the LCD screen contrast of SIP-T21(P) E2 to a comfortable level.
To configure the contrast via phone user interface:
1. Press Menu->Settings->Basic Settings->Display->Contrast.
2. Press or , or the Switch soft key to increase or decrease the intensity of
contrast.
The default contrast level is 6.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
Contrast is configurable via web user interface at the path Settings->Preference.
19
User Guide for the SIP-T21(P) E2 IP Phone
You can configure the backlight to adjust the brightness of the LCD screen. Backlight
status on the LCD screen can be configured from the following options:
Always On: Backlight is on permanently.
Always Off: Backlight is off permanently.
15s, 30s, 60s, 120s, 300s, 600s or 1800s: Backlight is turned off when the phone is
inactive after the designated time (in seconds).
To configure the backlight via phone user interface:
1. Press Menu->Settings->Basic Settings->Display>Backlight.
2. Press or , or the Switch soft key to select the desired type from the
Backlight Time field.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
Backlight is configurable via web user interface at the path Settings->Preference.
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. Press Menu->Settings->Basic Settings->Language.
2. Press or to select the desired language.
20
3. Press the Save soft key to accept the change.