Yealink SIP-T21P E2, SIP-T21 E2 User Manual

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Hereby, Yealink(Xiamen) Network Technology CO., LTD. declares that this phone is in conformity with
the essential requirements and other relevant provisions of the CE, FCC.
You can find the CE and FCC information from the label on the back of the IP phone.
Copyright
Copyright © 2016 YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD
Copyright © 2016 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, photocopying, recording, or otherwise, for any purpose, without the express written permission of Yealink(Xiamen) Network Technology CO., LTD. Under the law, reproducing includes translating into another language or format.
When this publication is made available on media, Yealink(Xiamen) 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(Xiamen) 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(XIAMEN) 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(Xiamen) 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
Statements of compliance can be obtained by contacting support@yealink.com.
CE Mark Warning
This device is marked with the CE mark in compliance with EC Directives 2014/35/EU and 2014/30/EU.
Part 15 FCC Rules
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
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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.
2. this device must accept any interference received, including interference that may cause undesired operation.
Industry Canada (IC)
This Class [B] digital apparatus complies with Canadian ICES-003 Rules.
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
Customer Feedback
We are striving to improve our documentation quality and we appreciate your feedback. Email your
opinions and comments to DocsFeedback@yealink.com.
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GNU GPL INFORMATION
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.
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About This Guide

Network Directory and Network Call Log features are hidden for IP phones in neutral firmware,
for more information.
Thank you for choosing the SIP-T21 E2/SIP-T21P E2 (hereinafter referred to as 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
which are designed for the BroadWorks environment. Please contact your system administrator
About This Guide

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.

Changes for Release 81, Guide Version 81.20

None

Changes for Release 81, Guide Version 81.15

The contents in the following section are removed to
Phones
:
Troubleshooting
Frequently Asked Questions on Yealink IP
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User Guide for the SIP-T21(P) E2 IP Phone
The following sections are new:
Power Saving on page 35
BLF Ring Type on page 49
Major updates have occurred to the following section:
Incoming Intercom Calls on page 143

Changes for Release 81, Guide Version 81.10

The following section is new:
Key Tone on page 48
Major updates have occurred to the following sections:
Basic Network Settings on page 30
Language on page 39
Phone Lock on page 43
Volume on page 46
DSS Keys on page 69
Dial Plan on page 81
Call Mute on page 98
Do Not Disturb (DND) on page 100
Call Transfer on page 112
Call Park on page 120
Busy Lamp Field (BLF) on page 131
Intercom on page 142
Multicast Paging on page 145

Changes for Release 80, Guide Version 80.95

The following section is new:
vi
Entering Data and Editing Fields on page 32
Major updates have occurred to the following sections:
Icon Instructions on page 15
Optional Accessories on page 24
Phone Installation on page 25
Appendix on page 183
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Changes for Release 80, Guide Version 80.60

The following sections are new:
Shared Call Appearance (SCA) on page 155
Bridged Line Appearance (BLA) on page 168
Major updates have occurred to the following sections:
Icon Instructions on page 15
LED Instructions on page 17
Web User Interface on page 19
Call Forward on page 104
About This Guide
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User Guide for the SIP-T21(P) E2 IP Phone
viii
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Table of Contents

Table of Contents
About This Guide ........................................................................... v
In This Guide .............................................................................................................................................................. v
Summary of Changes ............................................................................................................................................. v
Changes for Release 81, Guide Version 81.20 .......................................................................................... v
Changes for Release 81, Guide Version 81.15 .......................................................................................... v
Changes for Release 81, Guide Version 81.10 ......................................................................................... vi
Changes for Release 80, Guide Version 80.95 ......................................................................................... vi
Changes for Release 80, Guide Version 80.60 ........................................................................................ vii
Table of Contents .......................................................................... ix
Overview ....................................................................................... 13
Hardware Component Instructions ............................................................................................................... 13
Icon Instructions .................................................................................................................................................... 15
Feature Status Icons......................................................................................................................................... 15
Line Key Icons ..................................................................................................................................................... 15
Other Icons .......................................................................................................................................................... 16
LED Instructions ..................................................................................................................................................... 17
User Interfaces ....................................................................................................................................................... 19
Phone User Interface ....................................................................................................................................... 19
Web User Interface........................................................................................................................................... 19
Documentations .................................................................................................................................................... 22
Getting Started ............................................................................. 23
Packaging Contents ............................................................................................................................................. 23
Optional Accessories ....................................................................................................................................... 24
Phone Installation ................................................................................................................................................. 25
Phone Initialization ............................................................................................................................................... 28
Phone Status ........................................................................................................................................................... 28
Basic Network Settings ....................................................................................................................................... 30
Registration ............................................................................................................................................................. 31
Idle Screen ............................................................................................................................................................... 32
Entering Data and Editing Fields..................................................................................................................... 32
Customizing Your Phone ............................................................. 35
General Settings .................................................................................................................................................... 35
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Power Saving ...................................................................................................................................................... 35
Contrast ................................................................................................................................................................ 38
Backlight ............................................................................................................................................................... 38
Language.............................................................................................................................................................. 39
Time & Date ........................................................................................................................................................ 40
Administrator Password ................................................................................................................................. 42
Key As Send ........................................................................................................................................................ 42
Phone Lock .......................................................................................................................................................... 43
Audio Settings ........................................................................................................................................................ 46
Volume .................................................................................................................................................................. 46
Ring Tones ........................................................................................................................................................... 47
Key Tone ............................................................................................................................................................... 48
BLF Ring Type ..................................................................................................................................................... 49
Contact Management ......................................................................................................................................... 49
Directory ............................................................................................................................................................... 49
Local Directory ................................................................................................................................................... 51
Blacklist ................................................................................................................................................................. 59
Remote Phone Book ........................................................................................................................................ 61
Call History Management .................................................................................................................................. 63
Viewing History Records ................................................................................................................................ 63
Placing a Call from History Records .......................................................................................................... 63
Adding a Contact to the Local Directory/Blacklist ............................................................................... 63
Deleting History Records ............................................................................................................................... 64
Disabling History Record ............................................................................................................................... 64
Search Source List in Dialing ............................................................................................................................ 65
System Customizations....................................................................................................................................... 66
Logo Customization ......................................................................................................................................... 66
Headset Use ........................................................................................................................................................ 67
DSS Keys ............................................................................................................................................................... 69
Account Management .................................................................................................................................... 79
Dial Plan ................................................................................................................................................................ 81
Emergency Number ......................................................................................................................................... 86
Live Dialpad ......................................................................................................................................................... 87
Hotline ................................................................................................................................................................... 88
Basic Call Features ........................................................................ 89
Placing Calls ............................................................................................................................................................ 89
Answering Calls ...................................................................................................................................................... 92
Ending Calls ............................................................................................................................................................. 93
Redialing Numbers ............................................................................................................................................... 93
Recent Call In Dialing .......................................................................................................................................... 93
Auto Answer ............................................................................................................................................................ 95
Auto Redial .............................................................................................................................................................. 95
Call Completion ..................................................................................................................................................... 96
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Table of Contents
ReCall ......................................................................................................................................................................... 97
Call Mute .................................................................................................................................................................. 98
Mute a Call .......................................................................................................................................................... 98
Keep Mute ........................................................................................................................................................... 99
Call Hold/Resume ................................................................................................................................................. 99
Do Not Disturb (DND) ....................................................................................................................................... 100
Call Forward .......................................................................................................................................................... 105
Static Forwarding ............................................................................................................................................ 105
Dynamic Forwarding ..................................................................................................................................... 112
Call Transfer........................................................................................................................................................... 112
Blind Transfer .................................................................................................................................................... 113
Semi-attended Transfer................................................................................................................................ 115
Attended Transfer ........................................................................................................................................... 116
Call Waiting ........................................................................................................................................................... 116
Conference ............................................................................................................................................................ 117
Local Conference ............................................................................................................................................ 117
Network Conference...................................................................................................................................... 118
Call Park .................................................................................................................................................................. 120
FAC Mode .......................................................................................................................................................... 120
Transfer Mode .................................................................................................................................................. 123
Call Pickup ............................................................................................................................................................. 124
Directed Call Pickup ....................................................................................................................................... 125
Group Call Pickup ........................................................................................................................................... 126
Anonymous Call .................................................................................................................................................. 128
Anonymous Call Rejection .............................................................................................................................. 129
Advanced Phone Features ......................................................... 131
Busy Lamp Field (BLF) ........................................................................................................................................ 131
Configuring the BLF Feature on the IP Phone ..................................................................................... 131
Using BLF Feature on the Phone .............................................................................................................. 135
BLF List .................................................................................................................................................................... 137
Call Recording ...................................................................................................................................................... 139
Configuring a Record Key ........................................................................................................................... 139
Configuring a URL Record Key .................................................................................................................. 140
Recording a Call .............................................................................................................................................. 140
Hot Desking .......................................................................................................................................................... 141
Intercom ................................................................................................................................................................. 142
Configuring the Intercom Feature on the IP Phone.......................................................................... 142
Using Intercom ................................................................................................................................................ 145
Multicast Paging .................................................................................................................................................. 145
Sending RTP Stream ...................................................................................................................................... 146
Receiving RTP Stream ................................................................................................................................... 149
Using Multicast Paging ................................................................................................................................. 151
Music on Hold (MoH) ........................................................................................................................................ 152
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Automatic Call Distribution (ACD) ............................................................................................................... 153
Shared Call Appearance (SCA) ....................................................................................................................... 155
Configuring SCA Feature on the IP Phone ........................................................................................... 155
Using SCA Feature on the IP Phone ........................................................................................................ 162
Bridged Line Appearance (BLA) ..................................................................................................................... 168
Configuring BLA Feature on the IP Phone ............................................................................................ 169
Using BLA Feature on the IP Phone......................................................................................................... 172
Messages ................................................................................................................................................................ 174
Short Message Service (SMS)..................................................................................................................... 174
Voice Mail .......................................................................................................................................................... 176
Message Waiting Indicator (MWI) ........................................................................................................... 178
Regulatory Notices .................................................................... 181
Service Agreements ........................................................................................................................................... 181
Limitations of Liability ....................................................................................................................................... 181
Safety Instructions .............................................................................................................................................. 181
Appendix..................................................................................... 183
Appendix A – Time Zones ................................................................................................................................ 183
Appendix B – Menu Structure ........................................................................................................................ 185
Index ........................................................................................... 187
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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.
Overview

Hardware Component Instructions

The main hardware components of the SIP-T21(P) E2 IP phone are the LCD screen and the keypad.
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Item
Description
LCD Screen
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
Power Indicator LED
Indicates phone power status and phone status.
• Receives an incoming call—Fast flashing
• Receives a voice mail or text message—Slowly flashing
Line Keys
Use these keys to activate up to two accounts and assign various features.
Soft Keys
Label automatically to identify their context-sensitive features.
Scroll through the displayed information.
Confirms actions or answers incoming calls.
Cancels actions, rejects incoming calls, mutes or un-mutes calls.
MESSAGE Key
Indicates and accesses voice mails.
HEADSET Key
Toggles the headset mode.
TRAN Key
Transfers a call to another party.
RD Key
Redials a previously dialed number.
Speakerphone Key
Toggles the hands-free speakerphone mode.
Volume Key
Adjusts the volume of the handset, headset, speaker or ringer.
Keypad
Provides the digits, letters and special characters in context-sensitive applications.
Speaker
Provides hands-free (speakerphone) audio output.
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.
Hookswitch Tab
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:
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Icon Instructions

Icons
Description
Network is unavailable
Hands-free speakerphone mode
Handset mode
Headset mode
Voice Mail
Text Message
Auto Answer
Do Not Disturb (DND)
Ringer volume is 0
Phone Lock
Keep Mute
Missed Calls
Call Forward
Icons
Description
The private line registers successfully

Feature Status Icons

Icons appearing on the status bar are described in the following table:
Overview

Line Key Icons

Icon indicator (associated with line)
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Icons
Description
Register failed
Registering
The shared/bridged line registers successfully
DND is enabled on this line
Call forward is enabled on this line
Icon
Description
The ACD state is available
and x
The ACD state is unavailable
The ACD state is Wrap up
Logged out of the ACD system
Icons
Description
Recording box is full
A call cannot be recorded
Recording starts successfully
Recording cannot be started
Recording cannot be stopped
Icon indicator (associated with ACD)

Other Icons

Icon indicator (associated with call recording)
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Icon indicator (associated with call history)
Icons
Description
Received Calls
Placed Calls
Missed Calls
Forwarded Calls
Icons
Description
The contact icon
LED Status
Description
Solid red
The phone is initializing.
Fast flashing red (300ms)
The phone is ringing.
Slowly flashing red (1s)
The phone receives a voice mail or text message.
Off
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.
LED Status
Description
Solid green
The line is seized. The line is in conversation.
Fast flashing green
The line receives an incoming call.
Slowly flashing green
The call is placed on hold.
Off
The line is inactive.
Icon indicator (associated with contact)
Overview

LED Instructions

Power Indicator LED
Line key LED
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LED Status
Description
Solid green
The monitored user is idle.
Fast flashing red (200ms)
The monitored user receives an incoming call.
Solid red
The monitored user is busy.
The monitored user’s conversation is placed on hold
(This LED status requires server support).
Slowly flashing red (1s)
The call is parked against the monitored user’s phone
number.
Off
The monitored user does not exist.
LED Status
Description
Off
The shared line is idle.
Fast flashing green
The shared line receives an incoming call.
Solid green (for local SCA phone) Solid red (for monitoring SCA phone)
The shared line is in conversation. The shared line is dialing. The shared line is seized. The shared line conversation is barged in by the other shared line party.
Slowly flashing green (for local SCA phone) Slowly flashing red (for monitoring SCA phone)
The shared line conversation is placed on public hold.
Slowly flashing green (for local SCA phone) Solid red (for monitoring SCA phone)
The shared line conversation is placed on private hold. For a multi-party call, all the shared line parties participating in this call place the shared line conversation on hold.
LED Status
Description
Off
The bridged line is idle.
Fast flashing green
The bridged line receives an incoming call.
Line key LED (configured as a BLF key or BLF List key)
Line key LED (associated with a shared line)
The local SCA phone indicates the phone is involved in a SCA call, while the monitoring SCA phone indicates the phone is not involved in the SCA call.
Line key LED (associated with a bridged line)
The local BLA phone indicates the phone is involved in a BLA call, while the monitoring BLA phone indicates the phone is not involved in the BLA call.
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LED Status
Description
Solid green (for local BLA phone) Solid red (for monitoring BLA phone)
The bridged line is in conversation. The bridged line is dialing. The bridged line is seized.
Slowly flashing green (for local BLA phone) Slowly flashing red (for monitoring BLA phone)
The bridged line conversation is placed on hold.
Note
The above introduces the default LED status. The statuses of the power indicator LED and BLF key
BLF key behavior. For more information, contact your system administrator.
For a better understanding of the menu structure, please refer to Appendix B – Menu Structure
on page 185.
LED are configurable via web user interface. You can also customize the BLF key LED status and

User Interfaces

Overview
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.

Phone User Interface

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 35.
Note

Web User Interface

In addition to the phone user interface, you can also customize your phone via web user
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User Guide for the SIP-T21(P) E2 IP Phone
Options
Phone User Interface
Web User Interface
Status
--IPv4
--MAC Address
--Firmware
--Network
--Phone
--Accounts
Basic Phone Settings
--Power Saving
x
--Contrast
--Backlight
--Language
--Time & Date
--Administrator Password
--Key As Send
--Phone Lock
--Audio Settings
--Ring Tones
--Key Tone
--BLF Ring Type
--Contact Management
--Directory
x
--Local Directory
--Blacklist
--Remote Phone Book
x
--Call History Management
--Search Source List in Dialing
x
--Logo Customization
x
The access of Advanced settings page of the Account or Network web page may be
plugin”.
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 when the phone is idle. Enter the IP address (e.g., http://192.168.0.10 or 192.168.0.10 for IPv4; http://[2005:1:1:1:215:65ff:fe64:6e0a] or [2005:1:1:1:215:65ff:fe64:6e0a] for IPv6) in the address bar of a web browser on your PC. The default administrator user name and password are both
admin (case-sensitive).
Note
restricted by the web explorer (e.g., Chrome, Firebox) if you have installed “Adblock Plus
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:
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Overview
Options
Phone User Interface
Web User Interface
--Headset Use
--DSS Keys
--Account Management
--Dial Plan
x
--Emergency Number
x
--Live Dialpad
x
--Hotline
Basic Call Features
--Recent Call In Dialing
x
--Auto Answer
--Auto Redial
--Call Completion
--ReCall
-- Do Not Disturb (DND)
--Call Forward
--Call Transfer
--Call Waiting
--Conference
x
--Call Park
--Call Pickup
--Anonymous Call
--Anonymous Call Rejection
Advanced Phone Features
--Busy Lamp Field (BLF)
--BLF List
x
--Call Recording
--Hot Desking
--Intercom
--Multicast Paging
x
--Music on Hold
x
--Automatic Call Distribution (ACD)
x
--Shared Call Appearance (SCA)
x
--Bridged Line Appearance (BLA)
x
--Messages
SIP Account
--User Options
--Activation
--Label
--Display Name
--Register Name
--User Name
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User Guide for the SIP-T21(P) E2 IP Phone
Options
Phone User Interface
Web User Interface
--Password
--Server Options
--SIP Server 1/2
--Register Port
x
--Outbound Status
--Outbound Proxy1/2
--Fallback Interval
--NAT Status
Name
Contents
Where found
Language
Quick Start Guide
Basic call features and phone customizations
In the package
English
On the website
English/Chinese
User Guide
Phone/Web user interface settings Basic call features and advanced phone features
On the website
English/Chinese
The table above lists most of the feature options. Please refer to the relevant sections for more information.
You can also download the latest documentations online:
http://support.yealink.com/documentFront/forwardToDocumentDetailPage?documentId=77.
Note

Documentations

Note
The following table shows documentations available for the SIP-T21(P) E2 IP phone.
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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
Getting Started
Entering Data and Editing Fields
If you require additional information or assistance with your new phone, contact your system administrator.

Packaging Contents

The following components are included in your SIP-T21(P) E2 IP phone package:
SIP-T21(P) E2 IP Phone
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Phone Stand
Handset & Handset Cord
Ethernet Cable
Quick Start Guide
Check the list before installation. If you find anything missing, contact your system administrator.

Optional Accessories

24
The following items are optional accessories for your SIP-T21(P) E2 IP phone. You need to purchase them separately if required.
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Power Adapter (5.5mm DC plug)
We recommend that you use the accessories provided or approved by Yealink. The use of unapproved third-party accessories may result in reduced performance.
Headset
Getting Started
Note

Phone Installation

If your phone is already installed, proceed to Phone Initialization on page 28.
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
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User Guide for the SIP-T21(P) E2 IP Phone
The hookswitch tab has a lip which allows the handset to stay on-hook when the IP phone is mounted vertically.
1) Attach the stand
Note
2) Connect the handset and optional headset
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Note
PoE is not applicable to the SIP-T21 E2 IP phone.
The IP phone should be used with Yealink original power adapter (5V/600mA) only. The use of the third-party power adapter may cause the damage to the phone.
Getting Started
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)
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.
Note
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.
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If your network does not use DHCP, proceed to Basic Network Settings on page 30.
If in-line power is provided, you don’t need to connect the phone to the power adapter. Make
configurations.
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 available port
on the in-line power switch/hub.
Note
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

Phone Initialization

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.
Note

Phone Status

You can view phone status via phone user interface or web user interface.
Available information of phone status includes:
Network status (IPv4 status or IPv6 status, IP mode and MAC address).
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- IPv4 uses a 32-bit address.
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Getting Started
- IPv6 is an updated version of the current Internet Protocol to meet the increased
demands for unique IP addresses, using a 128-bit address.
Phone status (product name, hardware version, firmware version, product ID, MAC address
and device certificate status).
Account status (register status of SIP accounts).
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 key.
(e.g., “http://192.168.0.10” for IPv4 or “http://[2005:1:1:1:215:65ff:fe64:6e0a]” for IPv6).
3. Enter the user name (admin) and password (admin) in the login page.
4. Click Confirm to login.
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If IP mode of the phone is configured as IPv4 & IPv6, you can enter either of them in the
your system administrator for more information.
The phone status is displayed on the first page of the web user interface.
Note
browser’s address bar to view the phone status. IPv6 is not available on all servers. Contact

Basic Network Settings

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 mode via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
2. Press or 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.
You can configure a static IPv4 address for the IP phone. Before configuring it, make sure that the IP mode is configured as IPv4 or IPv4 & IPv6.
To configure a static IPv4 address via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
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Getting Started
The wrong network settings may result in inaccessibility of your phone and may also have an
system administrator.
2. Press to select the IPv4 and then press the Enter soft key.
3. Press to select Static IPv4 Client and then press the Enter soft key.
4. Enter the desired value in the IP Address, Subnet Mask, Default Gateway, Pri.DNS and
Sec.DNS field respectively.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
You can configure a static IPv6 address for the IP phone. Before configuring it, make sure that the IP mode is configured as IPv6 or IPv4 & IPv6.
To configure a static IPv6 address via phone user interface:
Note
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 value in the IP Address, IPv6 IP Prefix, Default Gateway, Pri.DNS and
Sec.DNS field respectively.
5. 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, contact your

Registration

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 79.
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Input Mode
Keypad
2aB
abc
Abc
(initials in
capitals)
ABC
123
1 1
2abcABC
abc2джеаб
âãç
abc2джеаб
âãç
ABC2ÄÆÅ
АБВГЗ
2
3defDEF
def3ийклр
def3ийклр
DEF3ИЙКЛР
3
4ghiGHI
ghi4ìíîï
ghi4ìíîï
GHI4ÌÍÎÏ
4 5jklJKL
jkl5£
jkl5£
JKL5£
5
6mnoMNO
mno6öøòó
mno6öøòó
MNO6ÖØ
6
You can configure the phone not to display the label of default account, contact your system administrator for more information.

Idle Screen

If the phone has successfully started up, the idle LCD screen will be displayed as below.
The idle screen displays the label of default account, time and date, and four soft keys.
Note

Entering Data and Editing Fields

You can enter data and edit fields using the phone keypad.
Keypad on the phone provides different characters (or numbers) when using the 2aB, abc, Abc, ABC or 123 input mode. You can change the following input modes to enter data and edit fields on your phone. When your phone keypad matches the input mode, you can press the keypad repeatedly to view the character (or number) options and stop to select. When the character (or number) you want to enter displays in the field, wait one second, and enter the next character (or number).
The following table lists the input modes and character (or number) options for the keypad:
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Getting Started
Input Mode
Keypad
2aB
abc
Abc
(initials in
capitals)
ABC
123
ôõñ
ôõñ
ТУФХС
7pqrsPQRS
pqrs7ßЅ
pqrs7ßЅ
PQRS7Ѕ
7
8tuvTUV
tuv8ùúûü
tuv8ùúûü
TUV8ÙÚÛ
Ü
8
9wxyzWXY
Z
wxyz9ýÞ
wxyz9ýÞ
WXYZ9ÝÞ
9 0
space
space
space
0
*.,'?!\-()@/:
_;+&%=<>
$¥¤[]{}~
^¡¿§#"|
*.,'?!\-()@/:
_;+&%=<>
$¥¤[]{}~
^¡¿§#"|
*.,'?!\-()@/:
_;+&%=<>
$¥¤[]{}~
^¡¿§#"|
*.,'?!\-()@/:
_;+&%=<>
$¥¤[]{}~
^¡¿§#"|
.*:/@[]
# # # # #
If you want to
Then you can
Enter only digits (1), uppercase (A) characters, lowercase (a) characters, or alphanumeric (2aB) characters.
Press a keypad key one or more times (depending
what input mode you’re in) to enter the characters
that is displayed on the keypad key.
You can press the abc soft key one or more times to switch among uppercase (ABC soft key), numeric (123 soft key), alphanumeric (2aB soft key), uppercase and lowercase (Abc soft key) and lowercase (abc soft key) input modes.
For example, if the input mode is ABC:
- To enter “A”, press once.
- To enter “B”, press twice quickly.
- To enter “C”, press three times quickly.
- To enter “2ДЖЕАБВГЗ”, press more
than three times quickly.
Note: When you are in the uppercase (ABC soft
To enter or edit data:
Do one of the following:
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If you want to
Then you can
key), uppercase and lowercase (Abc soft key) or lowercase (abc soft key) input mode,
is not available.
Enter special characters.
Press the keypad key or , or press .
For Key:
- If it is in the uppercase (ABC soft key),
uppercase and lowercase (Abc soft key) or lowercase (abc soft key) input mode, it will provide the space character.
- If it is in the numeric (123 soft key) or
alphanumeric (2aB soft key) input mode, it will only provide the digit 0.
For key:
- It only provides the pound character #.
For key:
- If it is in the uppercase (ABC soft key),
lowercase (abc soft key), uppercase and lowercase (Abc soft key) or alphanumeric (2aB soft key) input mode, it will provide the following special characters: *.,?!\-()@/:_;+&%=<>$¥¤[]{}~^¡¿§#"|.
- If it is in the numeric (123 soft key) input
mode, it will provide the following special characters: .*:/@[].
Delete text you entered.
Press or to position the cursor to the right of the text you want to delete, and then press the Delete soft key to delete one character at a time.
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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
Search Source List in Dialing
Customizing Your Phone
System Customizations
If you require additional information or assistance with your new phone, contact your system administrator.

General Settings

Power Saving

The power saving feature is used to turn off the backlight to conserve energy. The IP phone enters power-saving mode after it has been idle for a certain period of time.
The IP phone will exit power-saving mode if a phone event occurs:
Press any key.
Pick up the handset.
Hang up the handset.
There is an incoming call.
A new prompt (e.g., missed call, new voice mail or forwarded call).
The status of BLF key changes.
If the screen saver is enabled on your phone, power-saving mode will still occur.
You can configure the following power-saving settings:
Office Hour
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Power saving is configurable via web user interface only.
Idle Timeout (minutes)
Note
Enabling the Power Saving via Web User Interface
The office hour and idle timeout (minutes) settings work only if the power saving feature is enabled.
To enable the power saving feature via web user interface:
1. Click on Settings->Power Saving.
2. Select Enabled from the pull-down list of Power Saving.
3. Click Confirm to accept the change.
Configuring the Office Hour via Web User Interface
Office Hour specifies the starting time and ending time in the office each day.
To configure the office hour via web user interface:
1. Click on Settings->Power Saving.
2. Select a desired day of the week.
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Customizing Your Phone
3. Enter the starting time and ending time respectively in the desired day field.
4. Click Confirm to accept the change.
Configuring the Idle Timeout via Web User Interface
Idle Timeout specifies the period of time before the IP phone enters power-saving mode. The following three types of idle timeout you can configure:
Office Hours Idle TimeOut: Configures the idle timeout for office hours.
Off Hours Idle TimeOut: Configures the idle timeout for non-office hours.
User Input Extension Idle TimeOut: Configures idle timeout that applies after you use
the IP phone (for example, press a key on the phone or pick up/hang up the handset).
By default, the Office Hours Idle TimeOut is much longer than the Off Hours Idle TimeOut. If you use the IP phone, the idle timeout that applies (User Input Extension Idle TimeOut or Office Hours/Off Hours Idle TimeOut) is the timeout with the highest value. If the phone has an incoming call or new message, the User Input Extension Idle TimeOut is ignored.
To configure the idle timeout via web user interface:
1. Click on Settings->Power Saving.
2. Enter the desired value in the Office Hours Idle TimeOut field.
The default value is 960, you can set to 1-960.
3. Enter the desired value in the Off Hours Idle TimeOut field.
The default value is 10, you can set to 1-10.
4. Enter the desired value in the User Input Extension Idle TimeOut field.
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The default value is 10, you can set to 1-30.
5. Click Confirm to accept the change.

Contrast

You can configure the LCD screen contrast of SIP-T21(P) E2 to a comfortable level. The intensity of contrast ranges from 1 to 10 and the highest intensity is 10.
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.

Backlight

You can configure the backlight to adjust the brightness of the LCD screen. Backlight status on
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Customizing Your Phone
the LCD screen can be configured from the following options:
Always On: Backlight is on permanently.
Always Off: Backlight is off permanently. 15s, 30s, 1min, 2min, 5min, 10min or 30min: 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 time 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.

Language

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.
3. Press the Save soft key to accept the change.
Text displayed on the phone user interface will change to the selected language.
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To change the language for the web user interface:
1. Select the desired language from the pull-down list at the top-right corner of web user
interface.
Text displayed on the web user interface will change to the selected language.

Time & Date

The time and date are displayed on the LCD screen when the phone is idle. You can configure the phone to obtain the time and date from the SNTP server automatically, or configure the time and date manually. If the phone cannot obtain the time and date from the Simple Network Time Protocol (SNTP) server, contact your system administrator for more information.
To configure the SNTP settings via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->SNTP Settings.
2. Press or , or the Switch soft key to select the time zone that applies to your area
from the Time Zone field.
The default time zone is +8.
3. Enter the domain name or IP address of SNTP server in the NTP Server1 and NTP Server2
field respectively.
4. Press or , or the Switch soft key to select the desired value from the Daylight
Saving field.
5. Press or , or the Switch soft key to select the desired time zone name from the
Location field.
This field appears only if Daylight Saving field is selected Automatic.
The default time zone name is China(Beijing).
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Note
Date Format
Example (2016-09-02)
WWW MMM DD
Fri, Sep 02
DD-MMM-YY
02-Sep-16
Please refer to Appendix A – Time Zones for the list of available time zones on the IP phone.
Customizing Your Phone
6. Press the Save soft key to accept the change or the Back soft key to cancel.
To configure the time and date manually via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->Manual Settings.
2. Enter the specific date in the Date(YMD) field.
3. Enter the specific time in the Time(HMS) field.
4. Press the Save soft key to accept the change.
The date and time displayed on the LCD screen will change accordingly.
To configure the time and date format via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->Time & Date Format.
2. Press or , or the Switch soft key to select the desired time format (12 Hour or 24
Hour) from the Time Format field.
3. Press or , or the Switch soft key to select the desired date format from the Date
Format field.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
There are 7 available date formats. For example, for the date format “WWW DD MMM”, “WWW” represents the abbreviation of the weekday, “DD” represents the two-digit day, and “MMM” represents the first three letters of the month.
The date formats available:
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Date Format
Example (2016-09-02)
YYYY-MM-DD
2016-09-02
DD/MM/YYYY
02/09/2016
MM/DD/YY
09/02/16
DD MMM YYYY
02 Sep, 2016
WWW DD MMM
Fri, 02 Sep
You can also customize the date format. Contact your system administrator for more information.
Time and date are configurable via web user interface at the path Settings->Time & Date.
Note

Administrator Password

The Advanced Settings option is only accessible to the administrator. The default administrator
password is “admin”. For security reasons, you should change the default administrator
password as soon as possible.
To change the administrator password via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin) ->Change
Password.
2. Enter the current password in the Old PWD field.
3. Enter the new password in the New PWD field.
4. Re-enter the new password in the Confirm PWD field.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Administrator password is configurable via web user interface at the path Security->Password.

Key As Send

You can set the “#” key or “*” key to perform as a send key while dialing.
To configure key as send via phone user interface:
1. Press Menu->Features->Key As Send.
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2. Press or , or the Switch soft key to select # or * from the Key As Send field, or
The emergency number setting, if desired, must be set before lock activation. For more information, refer to Emergency Number on page 86.
select Disabled to disable this feature.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
Key as send is configurable via web user interface at the path Features->General Information.

Phone Lock

You can lock your phone temporarily when you are not using it. This feature helps to protect your phone from unauthorized use.
Customizing Your Phone
Note
Phone lock consists of the following:
Menu Key: The Menu soft key is locked. You cannot access the menu of the phone
until unlocked.
Function Keys: The function keys are locked. You cannot use the MESSAGE, RD, TRAN,
OK, X, navigation keys and soft keys until unlocked.
All Keys: All keys are locked except the Volume key, digit keys, # key, * key and
Speakerphone key. You are only allowed to dial emergency numbers, reject incoming calls by pressing the X key or the Reject soft key, answer incoming calls by lifting the handset, pressing the Speakerphone key, the HEADSET key, the OK key, or the Answer soft key, mute an active call by pressing the X key, and end the call by hanging up the handset, pressing the Speakerphone key or the
EndCall soft key.
To activate the phone lock via phone user interface:
1. Press Menu->Settings->Basic Settings->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field, and then press the OK soft
key.
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3. Press or , or the Switch soft key to select Enabled from the Lock Enable field.
4. Press or , or the Switch soft key to select the desired type from the Lock Type
field.
5. (Optional.) Enter the desired interval of automatic phone lock in the Lock Time Out field.
The default timeout is 0. It means the phone will not be automatically locked. You need to long press to lock it immediately when the phone is idle.
If it is set to other values except 0 (e.g., 5), the phone will be locked when the phone is inactive in idle screen for the designated time (in seconds).
6. Press the Save soft key to accept the change.
When the phone is locked, the LCD screen prompts “Phone locked.” and displays the
icon .
To change the phone unlock PIN via phone user interface:
1. Press Menu->Settings->Basic Settings->Change PIN.
2. Enter the desired value in the Old PIN, New PIN and Confirm PIN field respectively.
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3. Press the Save soft key to accept the change or the Back soft key to cancel.
The unlock PIN length must be within 15 digits.
You can also unlock the phone by administrator password. When you enter the administrator password to unlock the phone, the phone will turn to the Change PIN screen.
Note
To unlock the phone via phone user interface:
1. Press any locked key, enter the “Phone Lock” screen.
2. Enter the desired PIN in the Unlock PIN field.
3. Press the OK soft key to unlock the phone.
The icon disappears from the LCD screen.
Customizing Your Phone
Note
You can long press or wait for a period of time (if configured) to lock the phone again.
To deactivate the phone lock via phone user interface:
1. Press Menu->Settings->Basic Settings->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field, and then press the OK soft
key.
3. Press or , or the Switch soft key to select Disabled from the Lock Enable field.
4. Press the Save soft key to accept the change.
Phone lock is configurable via web user interface at the path Features->Phone Lock.
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If ringer volume is adjusted to minimum, the icon will appear on the LCD screen.

Audio Settings

Volume

You can press the Volume key to adjust the ringer volume when the phone is idle or ringing. You can also press the Volume key to adjust the receiver volume of currently engaged audio devices (handset, speakerphone or headset) when the phone is in use.
To adjust the ringer volume:
When the phone is idle:
1. Press to adjust the ringer volume.
Note
When the phone is ringing:
1. Press to adjust the ringer volume.
You can also press to adjust the ringer volume when selecting a ring tone. For more information, refer to Ring Tones on page 47.
To adjust the volume when the phone is during a call:
1. Press to adjust the volume of currently engaged audio device (handset,
speakerphone or headset).
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Ring Tones

Ring tones are used to indicate incoming calls. You can select different ring tones to distinguish different accounts registered on your phone, or to distinguish your phone from your neighbor’s.
To select a ring tone for the phone via phone user interface:
1. Press Menu->Settings->Basic Settings->Sound->Ring Tones->Common.
2. Press or to select the desired ring tone.
3. (Optional.) Press to adjust the ringer volume.
Customizing Your Phone
4. Press the Save soft key to accept the change or the Back soft key to cancel.
A ring tone for the phone is configurable via web user interface at the path
Settings->Preference->Ring Type.
To select a ring tone for the account via phone user interface:
1. Press Menu->Settings->Basic Settings->Sound->Ring Tones.
2. Press or to select the desired account and then press the Enter soft key.
3. Press or to select the desired ring tone.
If Common is selected, this account will use the ring tone selected for the phone.
4. (Optional.) Press to adjust the ringer volume.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
A ring tone for the account is configurable via web user interface at the path
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The priority of ring tone for an incoming call on the phone is as follows:
Uploading custom ring tones for your phone is configurable via web user interface only.
Account->Basic->Ring Type.
To upload a custom ring tone for your phone via web user interface:
1. Click on Settings->Preference.
2. In the Upload Ringtone field, click Browse to locate a ring tone (the file format must be
*.wav) file from your local system.
3. Click Upload to upload the file.
The custom ring tone appears in the pull-down list of Ring Type.
You can only delete the custom ring tone by clicking Del when selecting the desired custom ring tone in the Ring Type field.
Note
Contact ring tone (refer to Adding Contacts) >Group ring tone (refer to Adding
Groups) >Account ring tone >Phone ring tone.
Both single custom ring tone file and total custom ring tone files must be within 100KB.

Key Tone

If you enable key tone, the phone will produce a sound when you press the keypad.
To configure key tone via phone user interface:
1. Press Menu->Settings->Basic Settings->Sound->Key Tone.
2. Press or , or the Switch soft key to select Enabled or Disabled from the Key
Tone field.
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3. Press the Save soft key to accept the change or the Back soft key to cancel.
Key tone is configurable via web user interface at the path Features->Audio.

BLF Ring Type

You can specify a desired ring tone to play for BLF pickup on the phone. This allows the monitoring phone to play a specific ring tone when the monitored line receives an incoming call. To use this feature, you need to enable audio alert and visual alert features in advance. For more information, refer to Configuring Visual and Audio Alert for BLF pickup on page 132.
To configure BLF ring type via phone user interface:
1. Press Menu->Settings->Basic Settings->Sound->BLF Ring Type.
2. Press or to select the desired ring tone.
Customizing Your Phone
3. (Optional.) Press to adjust the ringer volume.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
BLF ring type is configurable via web user interface at the path Features->Call Pickup.

Contact Management

This section provides the operating instructions for managing contacts. Topics include:
Directory
Local Directory
Blacklist
Remote Phone Book

Directory

Directory provides easy access to frequently used lists. The lists may contain Local Directory, History, Remote Phone Book and LDAP. You can configure the list(s) to access for the Dir soft key.
To configure the list(s) to access for the Dir soft key via web user interface:
1. Click on Directory->Setting.
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The list(s) to access for Dir soft key is configurable via web user interface only.
2. In the Directory block, select the desired list from the Disabled column and then
click .
The selected list appears in the Enabled column.
3. Repeat the step 2 to add more lists to the Enabled column.
4. To remove a list from the Enabled column, select the desired list and then click .
5. To adjust the display order of enabled lists, select the desired list and then click or .
The LCD screen displays the list(s) in the adjusted order.
6. Click Confirm to accept the change.
Note
To check the directory via phone user interface:
1. Press the Dir soft key when the phone is idle.
The LCD screen displays the enabled list(s) in the directory.
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If there is only one list in the directory, press the Dir soft key to enter this list directly.
Local directory can be backed up on the provisioning server. For more information, contact
your system administrator.
If the remote phone book and LDAP are not configured in advance, you cannot see remote
system administrator.
Note
phone book and LDAP lists on the phone user interface. For more information on remote phone book, refer to Remote Phone Book on page 61. For more information on LDAP, contact your

Local Directory

The built-in phone directory can store the names and phone numbers of your contacts. You can store up to 1000 contacts and 48 groups in your phone's local directory. You can add new groups and contacts, edit, delete or search for a contact, or simply dial a contact number from the local directory.
Note
Customizing Your Phone
Adding Groups
To add a group to the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Press the AddGr soft key.
3. Enter the desired group name in the Name field.
4. Press or , or the Switch soft key to select the desired group ring tone from the
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Ring field.
If Auto is selected, this group will use the ring tone according to the priority: Contact ring tone (refer to Adding Contacts) >Account ring tone (refer to Ring Tones) >Phone ring tone (refer to Ring Tones). If a specific ring tone is selected, this group will use the ring tone according to the priority: Contact ring tone (refer to Adding Contacts) >Group ring tone.
5. Press the Add soft key to accept the change or the Back soft key to cancel.
You can also edit or delete any newly added contact groups.
Editing Groups
To edit a group in the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired group.
3. Press the Option soft key, and then select Detail.
4. Press or to scroll through the group information and then edit.
52
5. Press the Save soft key to accept change or the Back soft key to cancel.
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Deleting Groups
To delete a group from the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired group.
3. Press the Option soft key, and then select Delete.
The LCD screen prompts the following warning:
Customizing Your Phone
4. Press the OK soft key to confirm the deletion or the Cancel soft key to cancel.
You can also delete all groups by pressing the Option soft key and then select Delete All.
Adding Contacts
You can add contacts to the local directory in the following ways:
Manually
From call history
From a remote phone book
Adding Contacts Manually
To add a contact to the local directory manually:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
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If the contact has existed in the directory, the LCD screen will prompt Contact name existed!”.
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired contact group and then press the Enter soft key.
If the contact you want to add doesn’t belong to any group, select All Contacts and then press the Enter soft key.
3. Press the Add soft key.
4. Enter the name and the office, mobile or other numbers in the corresponding fields.
5. Press or , or the Switch soft key to select the desired account from the Account
field.
If Auto is selected, the phone will use the default account when placing calls to the contact from the local directory.
Note
6. Press or , or the Switch soft key to select the desired ring tone from the Ring
field.
If Auto is selected, this contact will use the ring tone according to the priority: Group ring tone (refer to Adding Groups) >Account ring tone (refer to Ring Tones) >Phone ring tone (refer to Ring Tones).
7. Press or , or the Switch soft key to select the desired group from the Group
field.
8. Press the Add soft key to accept the change or the Back soft key to cancel.
Adding Contacts from Call History
To add a contact to the local directory from the call history:
1. Press the History soft key.
2. Press or to highlight the desired entry.
3. Press the Option soft key, and then select Add to Contact.
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4. Press the OK soft key, and then edit the contact name.
5. Press the Save soft key to accept the change.
The entry is successfully saved to the local directory.
Adding Contacts from Remote Phone Book
To add a contact to the local directory from remote phone book:
1. Press Menu->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 49), press Dir->Remote Phone Book to enter the remote phone book.
2. Select the desired remote group and then press the Enter soft key.
3. Press or to highlight the desired entry.
4. Press the Option soft key, and then select Add to Contact.
5. Press the Save soft key to save the contact in the local directory.
If the contact has already existed in the local directory, the LCD screen will prompt Overwrite the original contact?”. Press the OK soft key to overwrite the original contact in local directory or the Cancel soft key to cancel.
For more information on remote phone book operating, refer to Remote Phone Book on page
61.
Editing Contacts
To edit a contact in the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired contact group and then press the Enter soft key.
If the contact is not in any group, select All Contacts and then press the Enter soft key.
3. Press or to highlight the desired contact.
4. Press the Option soft key, and then select Detail.
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5. Press or to highlight the contact information and then edit.
6. Press the Save soft key to accept change or the Back soft key to cancel.
Deleting Contacts
To delete a contact from the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired contact group and then press the Enter soft key.
If the contact is not in any group, select All Contacts and then press the Enter soft key.
3. Press or to highlight the desired contact.
4. Press the Option soft key, and then select Delete.
The LCD screen prompts the following warning:
5. Press the OK soft key to confirm the deletion or the Cancel soft key to cancel.
You can also delete all contacts by pressing the Option soft key, and then select Delete All.
Placing Calls to Contacts
To place a call to a contact from the local directory:
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1. Press the Dir soft key.
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Customizing Your Phone
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired contact group and then press the Enter soft key.
If the contact is not in any group, select All Contacts and then press the Enter soft key.
3. Press or to highlight the desired contact.
4. Do one of the following:
- If only one number of the contact is stored in the local directory, press the Send soft
key to dial out the number.
- If multiple numbers of the contact are stored in the local directory, press the Send soft
key to display a list of numbers.
Press or to highlight the desired number.
Press the Send soft key to dial out the number.
Searching for Contacts
To search for a contact in the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Press the Search soft key.
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3. Enter a few continuous characters of the contact name or continuous numbers of the
contact number (office, mobile or other number) using the keypad.
The contacts whose name or phone number matches the characters entered will appear on the LCD screen. You can dial from the result list.
Importing/Exporting Contact Lists
You can manage your phone’s local directory via phone user interface or web user interface. But you can only import or export the contact list via web user interface.
To import an XML file of contact list via web user interface:
1. Click on Directory->Local Directory.
2. Click Browse to locate a contact list file (the file format must be *.xml) from your local
system.
3. Click Import XML to import the contact list.
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The web user interface prompts “The original contact will be covered, continue?.
4. Click OK to complete importing the contact list.
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Customizing Your Phone
Importing/exporting contact lists is available via web user interface only.
To import a CSV file of contact list via web user interface:
1. Click on Directory->Local Directory.
2. Click Browse to locate a contact list file (file format must be *.csv) from your local system.
3. (Optional.) Check the Show Title checkbox.
It will prevent importing the title of the contact information which is located in the first line of the CSV file.
4. Click Import CSV to import the contact list.
5. (Optional.) Mark the On radio box in the Delete Old Contacts field.
It will delete all existing contacts while importing the contact list.
6. Select the contact information you want to import into the local directory from the
pull-down list of Index.
At least one item should be selected to be imported into the local directory.
7. Click Import to complete importing the contact list.
To export a contact list via web user interface:
1. Click on Directory->Local Directory.
2. Click Export XML (or Export CSV).
3. Click Save to save the contact list to your local system.
Note

Blacklist

The built-in phone directory can store names and phone numbers for a blacklist. You can store up to 30 contacts, add, edit, delete or search for a contact in the blacklist directory, and even call a contact from the blacklist directory. Incoming calls from blacklist directory contacts will be
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rejected automatically.
To add a contact to the blacklist directory manually:
1. Press Menu->Directory->Blacklist.
2. Press the Add soft key.
3. Enter the name and the office, mobile or other numbers in the corresponding fields.
4. Press or , or the Switch soft key to select the desired account from the Account
field.
If Auto is selected, the phone will use the default account when placing calls to the contact from the blacklist directory.
5. Press the Add soft key to accept the change or the Back soft key to cancel.
To add a contact to the blacklist directory from the local directory:
1. Press the Dir soft key.
The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
If Local Directory is removed from the directory (refer to Directory on page 49), press
Menu->Directory->Local Directory to enter the local directory.
2. Select the desired contact group and then press the Enter soft key.
If the contact is not in any group, select All Contacts and then press the Enter soft key.
3. Press or to highlight the desired contact.
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4. Press the Option soft key and then select Add to Blacklist.
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The LCD screen prompts the following warning:
5. Press the OK soft key to accept the change.
For operating instructions on editing, deleting, placing calls to and/or searching for contacts in the blacklist directory, refer to the operating instructions of Editing Contacts on page 55,
Deleting Contacts on page 56, Placing Calls to Contacts on page 56 and/or Searching for Contacts on page 57.

Remote Phone Book

Customizing Your Phone
You can add new contacts to the local directory, search for a contact, or simply dial a contact number from the remote phone book.
You can configure your new phone to access up to 5 remote phone books. For the access URL of the remote phone book, contact your system administrator.
For operating instructions on placing calls to and/or searching for contacts in the remote phone book, refer to the operating instructions of Placing Calls to Contacts on page 56 and/or
Searching for Contacts on page 57.
Configuring an Access URL
To configure an access URL for a remote phone book via web user interface:
1. Click on Directory->Remote Phone Book.
2. Enter the access URL in the Remote URL field.
3. Enter the name in the Display Name field.
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An access URL for a remote phone book is configurable via web user interface only.
4. Click Confirm to accept the change.
Note
Accessing the Remote Phone Book
To access your remote phone book via phone user interface:
1. Press Menu->Directory->Remote Phone Book.
If Remote Phone Book is added to the directory (refer to Directory on page 49), press Dir->Remote Phone Book to enter the remote phone book.
2. Press or to select the desired remote group, and then press the Enter soft key.
The phone then connects to the remote phone book and proceeds to load it. The contacts in the remote phone book are displayed on the LCD screen.
3. Press the Back soft key to back to the previous screen.
Incoming/Outgoing Call Lookup
You can enable the phone to present the caller/callee identity stored in the remote phone book when receiving/placing a call.
To configure incoming/outgoing call lookup and update time interval via web user
interface:
1. Click on Directory->Remote Phone Book.
2. Select Enabled from the pull-down list of Incoming/Outgoing Call Lookup.
3. Enter the desired refresh period in the Update Time Interval(Seconds) field.
The default value is 21600.
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4. Click Confirm to accept the change.

Call History Management

The SIP-T21(P) E2 IP phone maintains call history lists of Placed Calls, Received Calls, Missed Calls and Forwarded Calls. Each call history list supports up to 100 entries. You can view call history, place a call, add a contact or delete an entry from the call history list.
History record feature is enabled by default. If you don’t want to save the call history, you can disable the feature.

Viewing History Records

To view the call history:
1. Press the History soft key.
The LCD screen displays all call records.
Customizing Your Phone
2. Press or to switch among All Calls, Missed Calls, Placed Calls, Received Calls
and Forwarded Calls.
3. Press or to select the desired entry.
4. Press the Option soft key, and then select Detail.
The detailed information of the entry appears on the LCD screen.

Placing a Call from History Records

To place a call from the call history list:
1. Press the History soft key.
2. Press or to switch among All Calls, Missed Calls, Placed Calls, Received Calls
and Forwarded Calls.
3. Press or to select the desired entry.
4. Press the Send soft key.

Adding a Contact to the Local Directory/Blacklist

To add a contact to the local directory (or blacklist directory) from the call history list:
1. Press the History soft key.
2. Press or to switch among All Calls, Missed Calls, Placed Calls, Received Calls
and Forwarded Calls.
3. Press or to select the desired entry.
4. Press the Option soft key, and then select Add to Contact (or Add to Blacklist).
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5. Enter the desired values in the corresponding fields.
6. Press the Save soft key.
For more information on local directory and/or blacklist, refer to Local Directory on page 59 and/or Blacklist on page 59.

Deleting History Records

To delete an entry from the call history list:
1. Press the History soft key.
2. Press or to switch among All Calls, Missed Calls, Placed Calls, Received Calls
and Forwarded Calls.
3. Press or to select the desired entry.
4. Press the Delete soft key.
To delete all entries from the call history list:
1. Press the History soft key.
2. Press or to switch among All Calls, Missed Calls, Placed Calls, Received Calls
and Forwarded Calls.
3. Press the Option soft key, and then select Delete All.
4. Press the OK soft key.
The LCD screen prompts Delete all the call records?”.
5. Press the OK soft key to confirm the deletion or the Cancel soft key to cancel.

Disabling History Record

To disable history record via phone user interface:
1. Press Menu->Features->History Setting.
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2. Press or , or the Switch soft key to select Disabled from the History Record
field.
3. Press the Save soft key to accept the change or the Back soft key to cancel.

Search Source List in Dialing

You can search for a contact from the desired lists when the phone is on the dialing screen. The lists can be Local Directory, History, Remote Phone Book and LDAP.
To configure search source list in dialing via web user interface:
Customizing Your Phone
1. Click on Directory->Setting.
2. In the Search Source List In Dialing block, select the desired list from the Disabled column
and then click .
The selected list appears in the Enabled column.
3. Repeat the step 2 to add more lists to the Enabled column.
4. To remove a list from the Enabled column, select the desired list and then click .
5. To adjust the display order of search results, select the desired list and then click
or .
The LCD screen will display search results in the adjusted order.
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Search source list in dialing is configurable via web user interface only.
6. Click Confirm to accept the change.
Note
To search for a contact in the enabled search source lists:
1. Pick up the handset, press the Speakerphone key or press the line key.
2. Enter a few continuous characters of the entry’s name or continuous numbers of the entry’s
phone number (office, mobile or other number) using the keypad.
The entries in the enabled search source lists whose name or phone number matches the characters entered will appear on the LCD screen. You can press or to scroll to the desired entry, and then place a call to the entry.

System Customizations

Logo Customization

You can upload your custom logo which will be shown on the idle screen.
To upload a custom logo via web user interface:
1. Click on Features->General Information.
2. Select Custom logo from the pull-down list of Use Logo.
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3. Click Browse to locate the logo file from your local system.
Delete item will appear after you upload a custom logo, you can click Delete to delete the
A custom logo can be uploaded via web user interface only.
To use headset, make sure the headset mode is enabled. Contact your system administrator for more information.
Customizing Your Phone
4. Click Upload to upload the file.
Note
custom logo.
The logo file format must be *.dob, contact your system administrator for more information.

Headset Use

If you want to use a headset, physically connect your headset and activate the headset mode for use. For more information on physically connecting a headset, refer to Phone Installation on page 25.
Note
Headset Mode Activation/Deactivation
To activate the headset mode:
1. Press on the phone.
The headset icon appears on the idle screen.
Press the line key or the Answer soft key to answer an incoming call. The call will be connected to your headset automatically.
Enter the desired number and then press the Send soft key, the phone will then place a call using the headset automatically. For more information on using the headset to place a call,
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If headset prior is enabled, the headset mode will not be deactivated until you press the
Headset prior is configurable via web user interface only.
refer to Placing Calls on page 89.
To deactivate the headset mode:
1. Press again on the phone.
The headset icon disappears from the idle screen.
Headset Prior
You can use headset in priority when headset prior feature is enabled. This feature is especially useful for permanent or full-time headset users.
To enable headset prior via web user interface:
1. Click on Features->General Information.
2. Select Enabled from the pull-down list of Headset Prior.
3. Click Confirm to accept the change.
To use headset prior feature, you should activate the headset mode in advance:
1. Physically connect the headset.
2. Press to activate the headset mode.
Note
HEADSET key again.
If headset prior is disabled, the headset mode can be deactivated by pressing the Speakerphone key or the HEADSET key.
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Dual Headset
Dual headset is configurable via web user interface only.
You can use two headsets when enabling dual headset. To use this feature, you must physically connect headsets to the headset jack and handset jack respectively. Once the phone connects to a call, the headset connected to the headset jack will have full-duplex capabilities, while the one connected to the handset jack will only be able to listen.
To enable dual headset via web user interface:
1. Click on Features->General Information.
2. Select Enabled from the pull-down list of Dual Headset.
Customizing Your Phone
3. Click Confirm to accept the change.
Note

DSS Keys

There are two types of DSS keys: Line Keys and Programable Keys. The details will be introduced in the following. The SIP-T21(P) E2 IP phone supports 2 line keys and 11 programable keys.
Line Keys
You can assign predefined functionalities to line keys. You can also define a label for a line key feature which will appear on the LCD screen. Line keys allow you to quickly access features such as recall and voice mail. The line key LEDs will indicate the monitored status when the line keys are assigned with particular features, such as BLF. The default key type of each line key is Line.
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When the phone is idle, you can also long press the line key to configure it directly on the phone.
To assign functionality to a line key via phone user interface:
1. Press Menu->Features->DSS Keys.
2. Select the desired DSS key, and then press the Enter soft key.
3. Select the desired key type from the Type field.
4. (Optional.) Select the desired key event type from the Key Type field.
5. (Optional.) Select the desired line from the Account ID field.
6. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
7. (Optional.) Enter the corresponding value in the Value field.
8. (Optional.) Enter the corresponding value in the Extension field.
9. Press the Save soft key to accept the change or the Back soft key to cancel.
Line key is configurable via web user interface at the path Dsskey->Line Key.
Note
Line key features are explained in the following subchapters in detail:
Line
Speed Dial
Voice Mail
Direct Pickup
Group Pickup
Call Park
DTMF
Prefix
Local Group
XML Group
XML Browser
LDAP
Conference
Forward
Transfer
Hold
DND
SMS
Group Listening
Zero Touch
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Customizing Your Phone
URL
Phone Lock
Retrieve Park
Directory
For the features not listed above, refer to Basic Call Features on page 89 and Advanced Phone
Features on page 131. For more information, contact your system administrator.
Line
You can use this key feature to accept incoming calls, place active calls on hold or resume a held call. It performs in the same way as a hard line key.
Dependencies:
Type (Line)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Usage: When the phone receives an incoming call, the Line key LED flashes green:
1. Press the Line key to accept the incoming call.
2. Press the Line key to place a new call and the active call is placed on hold.
3. Press the Line key again to resume the held call.
Speed Dial
You can use this key feature to speed up dialing the numbers frequently used or hard to remember.
Dependencies:
Type (Speed Dial)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Value (the number you want to dial out)
Usage: Press the Speed Dial key to dial out the number specified in the Value field, using the
account selected from the Account ID field.
Voice Mail
You can use this key feature to quickly connect voice mail. For more information, refer to Voice
Mail on page 176.
Dependencies:
Type (Key Event)
Key Type (Voice Mail)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Value (the voice mail access code)
Usage: Press the Voice Mail key to dial out the voice mail access code. Then follow the voice
prompt to listen to the voice mails.
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Direct Pickup
You can use this key feature to answer someone else’s incoming call on the phone.
Dependencies:
Type (Key Event)
Key Type (DPickup)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Value (the directed call pickup code followed by the target phone number)
Usage: Press the Direct Pickup key on your phone when the target phone number receives an incoming call. The call is then answered on your phone.
Group Pickup
You can use this key feature to answer incoming calls in a group that is associated with their own group.
Dependencies:
Type (Key Event)
Key Type (GPickup)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Value (the group call pickup code)
Usage: Press the Group Pickup key on your phone when a phone number in the group receives an incoming call. The call is answered on your phone.
Call Park
You can use this key feature to park a call.
Dependencies:
Type (Key Event)
Key Type (Call Park)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Value (the call park code)
Usage: Press the Call Park key on your phone to park a call.
DTMF
You can use this key feature to send the specification of arbitrary key sequences via DTMF.
Dependencies:
Type (Key Event)
Key Type (DTMF)
Label (key label displayed on the LCD screen)
Value (DTMF sequence)
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Note
DTMF sequence can only contain “0-9”, “*”, “#” and ”A-E”.
Customizing Your Phone
Usage: Press the DTMF key during an active call to send the key sequence specified in the Value field.
Prefix
You can use this key feature to add a specified prefix number before the dialed number.
Dependencies:
Type (Key Event)
Key Type (Prefix)
Label (key label displayed on the LCD screen)
Value (the prefix number)
Usage: Press the Prefix key when the phone is idle, the phone will then enter the dialing screen
and display the prefix number that you specified in the Value field. You can enter the remaining digits and then dial out.
Local Group
You can use this key feature to quickly access a contact group in the local directory. For more information, refer to Local Directory on page 51.
Dependencies:
Type (Key Event)
Key Type (Local Group)
Local Group (the contact group name you want to access)
Label (key label displayed on the LCD screen)
Usage: Press the Local Group key to access the contact group specified in the Local Group
field.
XML Group
You can use this key feature to quickly access a remote group in your remote phone book. You should configure remote phone book in advance. For more information, refer to Remote Phone
Book on page 61.
Dependencies:
Type (Key Event)
Key Type (XML Group)
PhoneBook (the remote group name you want to access if remote phone
book is configured)
Label (key label displayed on the LCD screen)
Usage: Press the XML Group key to access the remote group specified in the PhoneBook field.
XML Browser
You can use this key feature to quickly access an XML browser. The XML browser allows you to create custom services which meet your functional requirements on the server. You can customize practical applications, such as weather report, stock information, Google search, etc.
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If the Value field is left blank, the Conference key performs the same as the Conf soft key during a call.
If the Value field is left blank, the Forward key performs the same as the FWD soft key when receiving an incoming call.
Dependencies:
Type (XML Browser)
Label (key label displayed on the LCD screen)
Value (the access URL for XML browser)
Usage: Press the XML Browser key to access the XML browser specified in the Value field.
LDAP
You can use this key feature to quickly access a LDAP search screen.
Dependencies:
Type (Key Event)
Key Type (LDAP)
Label (key label displayed on the LCD screen)
Usage:
1. Press the LDAP key to access the LDAP search screen.
2. Enter a few continuous characters of the contact name or continuous numbers of the
contact number using the keypad.
Conference
You can use this key feature to set up a conference call. For more information, refer to
Conference on page 117.
Note
Dependencies:
Type (Key Event)
Key Type (Conf)
Label (key label displayed on the LCD screen)
Value (the number you want to add to the conference)
Usage: Press the Conference key during an active call to set up a conference with the number specified in the Value field.
Forward
You can use this key feature to forward an incoming call to someone else. For more information, refer to Call Forward on page 104.
Dependencies:
Type (Key Event)
Key Type (FWD)
Label (key label displayed on the LCD screen)
Value (the number you want to forward to)
Usage: Press the Forward key to forward an incoming call to the number specified in the Value field.
Note
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Customizing Your Phone
Transfer mode via DSS key is configurable via web user interface at the path
Tran soft key during a call. For more information, refer to Call Transfer on page 112.
Transfer
When there is an active call on the phone, you can use this key feature to handle the call differently depending on the transfer mode assigned to the DSS key.
Dependencies:
Type (Key Event)
Key Type (Tran)
Label (key label displayed on the LCD screen)
Value (the number you want to transfer to)
Usage:
When the transfer mode on DSS key is Blind Transfer, press the Transfer key to complete
the blind transfer to the number specified in the Value field.
When the transfer mode on DSS key is Attended Transfer, press the Transfer key to dial
out the number specified in the Value field, and then perform the attended or semi-attended transfer.
When the transfer mode on DSS key is New Call, press the Transfer key to place a new call
to the number specified in the Value field.
Note
Features->Transfer->Transfer Mode Via Dsskey.
If the Value field is left blank, the Transfer key performs the same as the TRANSFER key or the
Hold
You can use this key feature to place an active call on hold or retrieve a held call.
Dependencies:
Type (Key Event)
Key Type (Hold)
Label (key label displayed on the LCD screen)
Usage:
1. Press the Hold key during an active call to place the call on hold.
2. Press the Hold key again to retrieve the held call.
DND
You can use this key feature to enable or disable DND. You can also use this key feature to access the custom DND screen. For more information, refer to Do Not Disturb (DND) on page
100.
Dependencies:
Type (Key Event)
Key Type (DND)
Label (key label displayed on the LCD screen)
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When DND is enabled, the DND key LED will illuminate solid green, and the incoming calls will be rejected automatically.
Usage:
When DND is in phone mode:
1. Press the DND key to enable DND.
2. Press the DND key again to disable DND.
When DND is in custom mode:
1. Press the DND key to access the custom DND screen. You can enable or disable DND for
one or all accounts.
Note
SMS
You can use this key feature to quickly access text message. For more information, refer to Short
Message Service (SMS) on page 174.
Dependencies:
Type (Key Event)
Key Type (SMS)
Label (key label displayed on the LCD screen)
Usage: Press the SMS key when the phone is idle to access text message.
Group Listening
You can use this key feature to activate the Speakerphone and Handset/Headset mode at the same time. It is suitable for the group conversations which have more than one person present at one end. You are able to speak and listen through the handset/headset, while the others nearby can only listen through the speaker.
Dependencies:
Type (Key Event)
Key Type (Group Listening)
Label (key label displayed on the LCD screen)
Usage:
1. During a call, press the Group Listening key to activate the group listening mode.
You can then speak and listen through the handset/headset, while other people at your side can only listen through the speaker at the same time.
2. Press the Group Listening key again to deactivate the group listening mode.
Zero Touch
You can use this key feature to quickly configure auto provision and network parameters.
Dependencies:
Type (Key Event)
Key Type (Zero Touch)
Label (key label displayed on the LCD screen)
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Usage:
1. Press the Zero Touch key to access the zero touch screen.
2. Press the OK soft key within a few seconds.
3. Configure the network parameters in the corresponding fields.
4. Press the Next soft key.
5. Configure the auto provision parameters in the corresponding fields.
6. Press the OK soft key.
The phone will reboot to update configurations.
URL
You can use this key feature to trigger the phone to send an HTTP GET request containing a specific URL.
Dependencies:
Type (URL)
Label (key label displayed on the LCD screen)
Value (the URL contained in the HTTP GET request)
Usage: Press the URL key to trigger the phone to send an HTTP GET request containing the URL specified in the Value field.
Phone Lock
You can use this key feature to immediately lock your phone instead of long pressing . For more information, refer to Phone Lock on page 43.
Dependencies:
Type (Phone Lock)
Label (key label displayed on the LCD screen)
Usage: When the phone lock feature is enabled, press the Phone Lock key to immediately lock
your phone instead of long pressing .
Retrieve Park
You can use this key feature to retrieve a parked call.
Dependencies:
Type (Retrieve Park)
Account ID (the account this feature will be applied to)
Label (key label displayed on the LCD screen)
Value (the park retrieve code)
Usage: Press the Retrieve Park key on your phone to retrieve a parked call.
Directory
You can use this key feature to easily access frequently used lists. For more information, refer to
Directory on page 49.
Dependencies:
Type (Dir)
Label (key label displayed on the LCD screen)
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The Directory key performs the same function as the Dir soft key when the phone is idle.
Usage: Press the Directory key to immediately access frequently used lists.
Note
Programable Keys
You can customize the soft keys, navigation keys and function keys.
To customize soft keys via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin) ->Softkey Label.
2. Select the desired soft key, and then press the Enter soft key.
3. Select the desired key type from the Type field.
4. (Optional.) Select the desired line from the Account ID field.
5. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
6. (Optional.) Enter the corresponding value in the Value field.
7. Press the Save soft key to accept the change or the Back soft key to cancel.
To customize the programable keys via web user interface:
1. Click on Dsskey->Programable Key.
2. Customize specific features for these keys.
3. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
Label is configurable only when customizing SoftKey (1-4).
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Note
Navigation keys and function keys are configurable via web user interface only.
Customizing Your Phone
4. Click Confirm to accept the change.
The X key can be used as a Cancel key or mute key. It cannot be customized when keep mute feature is enabled. For more information, contact your system administrator.
You can click Reset To Default to reset custom settings to defaults.
Then you can press the keys on the phone to perform the features you configured.
For example:
Switch Account Up
You can use this key feature to change the default account.
Dependencies:
Usage: Press the Switch Account Up key to scroll up the account list to select the desired
default account.
Switch Account Down
You can use this key feature to change the default account.
Dependencies:
Usage: Press the Switch Account Down key to scroll down the account list to select the desired
default account.
Type (Switch Account Up)
Type (Switch Account Down)

Account Management

You can register one or multiple accounts on the SIP-T21(P) E2 IP phone. You can also configure each line key to associate with an account or configure multiple line keys to associate with an account.
Account Registration
To register an account via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin) ->Accounts.
2. Select the desired account and then press the Enter soft key.
3. Select Enabled from the Activation field.
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Default account can be set by pressing or on the idle screen. It has priority when placing a call. The phone’s default account cannot be changed after reboot.
4. Enter the desired value in Label, Display Name, Register Name, User Name, Password
and SIP Server1/2 field respectively. Contact your system administrator for more information.
5. If you use the outbound proxy servers, do the following:
1) Press or , or the Switch soft key to select Enabled from the Outbound Status
field.
2) Enter the desired value in the Outbound Proxy1/2 and Fallback Interval field
respectively. Contact your system administrator for more information.
6. Press the Save soft key to accept the change or the Back soft key to cancel.
You can repeat steps 2 to 6 to register more accounts.
To disable an account via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin) ->Accounts.
2. Select the desired account and then press the Enter soft key.
3. Select Disabled from the Activation field.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
Account registration is configurable via web user interface at the path Account->Register.
Note
Multiple Line Keys per Account
You can configure multiple line keys to associate with an account. This enhances call visualization and simplifies call handling.
If this is the case, the LCD screen will resemble the following figure:
Incoming calls to this account will be distributed evenly among the available line keys. Outgoing calls will be distributed similarly.
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Your phone can be configured to have a combination of accounts with a single line key and
.
The dot "." can be used as a placeholder or multiple placeholders for any character. Example: "12." would match "123", "1234", "12345", "12abc", etc.
x
An "x" can be used as a placeholder for any character. Example: "12x" would match "121", "122", "123", "12a", etc.
-
Numeric ranges are allowed within the brackets: Digit “-” Digit. Example:
“[5-7]” would match the number”5”, ”6”or ”7”.
[]
The square brackets "[]" can be used as a placeholder for a single character which matches any of a set of characters. Example: "91[5-7]1234" would match "9151234", "9161234", "9171234".
()
The parentheses "( )" can be used to group together patterns, for instance, to logically combine two or more patterns. Example: "([1-9])([2-7])3" would match "923", "153", "773", etc.
$
The “$” should be followed by the sequence number of a parenthesis. The “$”
plus the sequence number means the whole character or characters placed in the parenthesis. The number directs to the right parenthesis when there are more than one. Example: A replace rule configuration, Prefix: "001(xxx)45(xx)", Replace: "9001$145$2". When you dial out "0012354599" on your phone, the IP phone will replace the number with "90012354599". “$1” means 3 digits in the first parenthesis, that is, “235”. “$2” means 2 digits in the second parenthesis, that is, “99”.
The IP phone supports a new dial plan mechanism – digit map. You can use one or more
plan will be ignored. For more information, contact your system administrator.
accounts with multiple line keys.

Dial Plan

Dial plan is a string of characters that governs the way your SIP-T21(P) E2 IP phone processes the inputs received from your phone keypad.
The SIP-T21(P) E2 IP phone supports the following dial plan features:
Replace Rule
Dial Now
Area Code
Block Out
The basic expression syntax you need to know:
Customizing Your Phone
Note
matching rules in one digit map string. If the new dial plan mechanism is enabled, old dial
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The valid values of Account field can be one or two digits between 1 and 2. Every two digits must
field, this
If you leave the Account field blank or enter 0, the replace rule will apply to all accounts.
Replace Rule
You can configure one or more replace rules (up to 100) to remove the specified string and replace it with another string. You can configure a pattern with wildcards (refer to the expression syntax in the table above), so that any string that matches the pattern will be replaced. This feature is convenient for you to dial out a long number. For example, a replace rule is configured
as “Prefix: 1” and “Replace: 1234”. When trying to dial out the number “1234”, you just need to enter “1” on the phone and then press the Send soft key.
To add a replace rule via web user interface:
1. Click on Settings->Dial Plan->Replace Rule.
2. Enter the string (e.g., 1) in the Prefix field.
3. Enter the string (e.g., 1234) in the Replace field.
4. Enter the desired line ID in the Account field or leave it blank.
5. Click Add to add the replace rule.
When you enter the number 1 using the keypad and then press the Send soft key, the phone will dial out 1234 instead.
Note
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be separated by a comma. For example, when you enter the value “1, 2” in the Account
replace rule will apply to account 1 and account 2.
To edit a replace rule via web user interface:
1. Click on Settings->Dial Plan->Replace Rule.
2. Select the desired replace rule by checking the check box.
3. Edit the values in the Prefix and Replace fields.
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4. Enter the desired line ID in the Account field or leave it blank.
Replace rule is configurable via web user interface only.
5. Click Edit to accept the change.
To delete one or more replace rules via web user interface:
1. Click on Settings->Dial Plan->Replace Rule.
2. Select one or more replace rules by checking the check box(es).
3. Click Del to delete the replace rule(s).
Note
Dial Now
You can configure one or more dial now rules (up to 100) on your phone. When the dialed number matches the dial now string, the number will be dialed out automatically. For example, a dial now rule is configured as "1xx", any entered three-digit string beginning with 1 will then be dialed out automatically on the phone.
Customizing Your Phone
To add a dial now rule via web user interface:
1. Click on Settings->Dial Plan->Dial Now.
2. Enter the desired value (e.g., 1xx) in the Rule field.
3. Enter the desired line ID in the Account field or leave it blank.
For more information on the valid values for the Account field, refer to Replace Rule on page 82.
4. Click Add to add the dial now rule.
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You can also edit or delete the dial now rule, refer to Replace Rule on page 82 for more
Dial now rule is configurable via web user interface only.
Time out for dial now rule is configurable via web user interface only.
When you enter the number 123 using the keypad, the phone will dial out 123 automatically without pressing any key.
Note
information.
Time Out for Dial now Rule
You can configure the delay time for dial now rules. That is, you can configure your phone to automatically dial out the phone number which matches a dial now rule, after the designated delay time.
To configure the time out for dial now rule via web user interface:
1. Click on Features->General Information.
2. Enter the time between 0 and 14 (seconds) in the Time Out for Dial Now Rule field.
The default value is “1”.
3. Click Confirm to accept the change.
Note
Area Code
Area codes are also known as Numbering Plan Areas (NPAs). They usually indicate geographical areas in a country. This feature is necessary when dialing a phone number outside the code area. For example, an area code is configured as "Code: 0592, Min Length: 1, Max Length: 15". When you dial out the number "56789" (the length of the number is between 1 and 15), the phone will
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Customizing Your Phone
The default value of minimum and maximum length is 1 and 15 respectively.
Area code is configurable via web user interface only.
add the area code and dial out the number "059256789". You can only configure one area code rule on your phone.
To configure the area code via web user interface:
1. Click on Settings->Dial Plan->Area Code.
2. Enter the desired values in the Code, Min Length (1-15) and Max Length (1-15) fields.
3. Enter the desired line ID in the Account field or leave it blank.
For more information on the valid values for the Account field, refer to Replace Rule on page 82.
4. Click Confirm to accept the change.
Note
Block Out
You can block some specific numbers (up to 10) from being dialed on your phone. When you dial a block out number on your phone, the dialing will fail and the LCD screen will prompt "Forbidden Number".
To add a block out number via web user interface:
1. Click on Settings->Dial Plan->Block Out.
2. Enter the desired value in the BlockOut NumberX field.
3. Enter the desired line ID in the Account field or leave it blank.
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Contact your local phone service provider for available emergency numbers in your area.
system administrator.
Block out number is configurable via web user interface only.
For more information on the valid values for the Account field, refer to Replace Rule on page 82.
4. Click Confirm to add the block out number.
Note

Emergency Number

Public telephone networks in countries around the world have a single emergency telephone number (emergency services number), that allows a caller to contact local emergency services for assistance when necessary. The emergency telephone number may differ from country to country. It is typically a three-digit number so that it can be easily remembered and dialed quickly. Some countries have a different emergency number for each of the different emergency services.
You can specify the emergency telephone numbers on the IP phone for contacting the emergency services in an emergency situation. You can dial these numbers when the phone is locked. For more information on phone lock, refer to Phone Lock on page 43.
Note
The IP phone also supports the emergency dialplan. For more information, contact your
To specify emergency numbers via web user interface:
1. Click on Features->Phone Lock.
2. Enter the emergency number in the Emergency field.
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Note
Emergency number is configurable via web user interface only.
Customizing Your Phone
For multiple emergency numbers, enter a comma between every two emergency numbers. The default emergency numbers are 112, 911 and 110.
3. Click Confirm to accept the change.

Live Dialpad

You can enable live dialpad feature on the SIP-T21(P) E2 IP phone, which enables the IP phone to automatically dial out a phone number without pressing the send key. You can also configure a delay, and then the phone will dial out the phone number automatically after the designated period of time.
To enable live dialpad via web user interface:
1. Click on Settings->Preference.
2. Select Enabled from the pull-down list of Live Dialpad.
3. Enter the desired delay time in the Inter Digit Time(1~14s) field.
The default delay time is 4 seconds.
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Live dialpad is configurable via web user interface only.
4. Click Confirm to accept the change.
Note

Hotline

You can dial a hotline number immediately upon lifting the handset, pressing the Speakerphone key or the line key. You can also configure a delay, and then the phone will dial out the hotline number automatically after the designated period of time.
To configure the hot line number via phone user interface:
1. Press Menu->Features->Hot Line.
2. Enter the desired number in the Hotline Number field.
3. Enter the delay time in the Hotline Delay field.
The valid values range from 0 to 10 (seconds) and the default value is “4.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
Hotline is configurable via web user interface at the path Features->General Information.
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Basic Call Features

The SIP-T21(P) E2 IP phone is designed to be easily used like a regular phone on a public switched telephone network (PSTN). You can place calls, answer calls, transfer a call to someone else, or conduct a conference call.
This chapter provides basic operating instructions for the SIP-T21(P) E2 IP phone. Topics include:
Placing Calls
Answering Calls
Ending Calls
Redialing Numbers
Recent Call In Dialing
Auto Answer
Basic Call Features
Auto Redial
Call Completion
ReCall
Call Mute
Call Hold/Resume
Do Not Disturb (DND)
Call Transfer
Call Waiting
Conference
Call Park
Call Pickup
Anonymous Call
Anonymous Call Rejection
If you require additional information or assistance with your new phone, contact your system administrator.

Placing Calls

You can place a call in one of three ways using your SIP-T21(P) E2 IP phone:
Using the handset
Using the speakerphone
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You can also dial using the SIP URI or IP address. To obtain the IP address of a phone, press the
information.
Using the headset
You can also dial the number first, and then choose the way you want to speak to the other party.
You can also search and dial a contact from call history, local directory or remote phone book. For more information, refer to Contact Management on page 49 and Call History Management on page 63.
During a call, you can alternate between Speakerphone, Headset and Handset modes by pressing the Speakerphone key, the HEADSET key, or by picking up the handset.
The call duration of the active call and far-site’s information (name or phone number) are visible on the LCD screen. In the figure below, the call to “Tom” (the phone number: 1058) has lasted 8 seconds.
Note
To place a call using the handset:
1. Pick up the handset.
2. Enter the desired number using the keypad.
3. Press , , or the Send soft key.
The # key is configured as a send key by default. You can also set the * key as the send key, or set neither. For more information, refer to Key As Send on page 42.
OK key when the phone is idle. The maximum SIP URI or IP address length is 32 characters. For example, SIP URI: 2210@sip.com, IP: 192.168.1.15.
Your phone may not support direct IP dialing. Contact your system administrator for more
To place a call using the hands-free speakerphone mode:
Do one of the following:
- With the handset on-hook, press or the line key to obtain a dial tone.
Enter the desired number using the keypad.
Press , , or the Send soft key.
- With the handset on-hook, enter the desired number using the keypad.
Press , , , or the Send soft key.
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Note
To permanently use the headset mode, refer to Headset Prior on page 68.
If multiple accounts are registered on the phone, you can first press the desired line key on the
account to place a call.
Basic Call Features
To place a call using the headset:
Do one of the following:
- With the optional headset connected, press to activate the headset mode.
Press the line key to obtain a dial tone.
Enter the desired number using the keypad.
Press , , or the Send soft key.
- With the optional headset connected, press to activate the headset mode.
Enter the desired number using the keypad.
Press , , or the Send soft key.
The SIP-T21(P) E2 IP phone can handle multiple calls at a time. However, only one active call (the call that has audio associated with it) can be in progress at any time, other calls are placed on hold. The SIP-T21(P) E2 IP phone can handle a maximum of 50 calls at one time.
Note
To place multiple calls:
You can have more than one call on your SIP-T21(P) E2 IP phone. To place a new call during an active call, do one of the following:
- Press the line key. The active call is placed on hold.
Enter the desired number using the keypad.
Press , , or the Send soft key.
- Press the Hold soft key to place the original call on hold.
Press the NewCall soft key.
Enter the desired number using the keypad.
Press , , or the Send soft key.
You can press or to switch between calls, and then press the Resume soft key to retrieve the desired call.
idle screen or press the Line soft key on the dialing screen, and then you can use the selected
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You can reject incoming calls by pressing the Reject soft key or the X key. You can also activate
information, refer to Call Forward on page 104.

Answering Calls

When you are not in another call, you can answer a call in one of three ways:
Using the handset
Using the speakerphone
Using the headset
Note
Do Not Disturb mode to ignore all incoming calls without ring on your phone. For more information, refer to Do Not Disturb (DND) on page 100.
You can forward incoming calls to someone else by pressing the FWD soft key. For more
Answering When Not in Another Call
Call duration and destination will always appear on the LCD screen for the active call.
To answer a call using the handset:
1. Pick up the handset.
To answer a call using the hands-free speakerphone mode:
Do one of the following:
- Press .
- With the handset on-hook and the headset mode deactivated, press the Answer soft key.
- With the handset on-hook and the headset mode deactivated, press the line key with the
fast flashing green LED indicator.
To answer a call using the headset:
Do one of the following:
- Press .
- With the headset mode activated, press the Answer soft key.
- With the headset mode activated, press the line key with the fast flashing green LED
indicator.
Answering When in Another Call
If you have an active call, and an incoming call arrives on the phone, do one of the following:
- Press the Answer soft key.
The incoming call is answered and the original call is placed on hold.
- Press to access the new call.
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Press or the Answer soft key.
The incoming call is answered and the original call is placed on hold.

Ending Calls

To end a call:
Do one of the following:
- If you are using the handset, press the EndCall soft key or hang up the handset.
- If you are using the headset, press the EndCall soft key.
- If you are using the speakerphone, press or the EndCall soft key.

Redialing Numbers

To redial the last dialed number from your phone:
Basic Call Features
1. Press twice.
A call to your last dialed number is attempted.
To redial a previously dialed number from your phone:
1. Press when the phone is idle.
2. Press or to select the desired entry from the placed calls list, and then press
or the Send soft key.

Recent Call In Dialing

To view the placed calls list when the phone is on the dialing screen, you should enable recent call in dialing in advance.
To enable recent call in dialing via web user interface:
1. Click on Directory->Setting.
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Recent call in dialing is configurable via web user interface only.
2. Select Enabled from the pull-down list of Recent Call In Dialing.
Note
3. Click Confirm to accept the change.
To view placed calls list when the phone is on the dialing screen:
1. Pick up the handset, press the Speakerphone key or press the line key.
The LCD screen displays the placed calls list.
You can also enter a few continuous characters of the contact name or continuous numbers of the contact number (office, mobile or other number) to search from placed calls list.
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Auto Answer

Auto answer is only applicable when there is no other call in progress on the phone.
You can use auto answer feature to automatically answer an incoming call on a line. Auto answer is configurable on a per-line basis.
You can choose to mute the local microphone when an incoming call is answered automatically. For more information, refer to Keep Mute on page 99.
To configure auto answer via phone user interface:
1. Press Menu->Features->Auto Answer.
2. Press or , or the Switch soft key to select the desired account from the Line ID
field.
3. Press or , or the Switch soft key to select Enabled from the Status field.
Basic Call Features
4. Press the Save soft key to accept the change or the Back soft key to cancel.
The icon appears on the LCD screen.
Auto answer is configurable via web user interface at the path Account->Basic.
Note

Auto Redial

You can enable auto redial to automatically redial a phone number when the called party is busy. You can also configure the number of auto redial attempts and the time to wait between redial attempts.
To configure auto redial via phone user interface:
1. Press Menu->Features->Auto Redial.
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2. Press or , or the Switch soft key to select Enabled from the Auto Redial field.
3. Enter the desired time (in seconds) in the Redial Interval field.
The default value is “10”.
4. Enter the desired number of redial attempts in the Redial Times field.
The default value is “10”.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Auto redial is configurable via web user interface at the path Features->General Information.
To use auto redial:
When the called party is busy, the following prompt will appear on the LCD screen of the phone:
1. Press the OK soft key to activate auto redial. The following prompt will appear on the LCD
screen of the phone:
2. Wait for the designated period of time or press the OK soft key to redial the phone
number.
The phone will retry as many times as configured until the called party is idle.

Call Completion

You can use call completion to notify the caller who failed to reach a desired party when the party becomes available to receive a call.
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Basic Call Features
Call completion is not available on all servers. For more information, contact your system administrator.
To configure call completion via phone user interface:
1. Press Menu->Features->Call Completion.
2. Press or , or the Switch soft key to select Enabled from the Call Completion
field.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
Call completion is configurable via web user interface at the path Features->General Information.
To use call completion:
When the called party is busy, the following prompt will appear on the LCD screen of the phone:
1. Press the OK soft key, the phone returns to the idle screen and call completion is activated.
When the called party becomes idle, the following prompt will appear on the LCD screen of the phone:
1. Press the OK soft key to redial the number.
Note

ReCall

You can press a recall key to place a call back to the last incoming call.
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To configure a recall key via phone user interface:
1. Press Menu->Features->DSS Keys.
2. Select the desired DSS key.
3. Press or , or the Switch soft key to select Key Event from the Type field.
4. Press or , or the Switch soft key to select ReCall from the Key Type field.
5. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
6. Press the Save soft key to accept the change or the Back soft key to cancel.
Recall key is configurable via web user interface at the path Dsskey->Line Key.

Call Mute

You can mute the microphone of the active audio device during an active call so that the other party cannot hear you.
You can also mute the microphone while dialing so that the other party cannot hear you when the call is set up. It helps prevent the other party from hearing the informal discussion when auto answer is enabled on his/her phone. You have to enable keep mute feature in advance.
Call mute applies to all modes (Handset, Headset and Speakerphone).

Mute a Call

To mute a call:
1. Press during an active call.
The LCD screen indicates that the call is now muted.
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To un-mute a call:
1. Press again to un-mute the call.
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Keep Mute

The phone will beep softly every 30 seconds to remind you that you still have a call on hold. The phone ignores engaged audio device (handset or headset) and switches to Speakerphone to play the hold tone by default.
Normally, the mute state ends when the active call ends. If keep mute is enabled, you can mute the microphone on the idle/pre-dialing/dialing/ringing/calling/talking screen. The phone stays in the mute state until you un-mute the microphone or until the phone restarts. This feature should be pre-configured by your system administrator.
To mute the microphone:
1. Press on the idle/pre-dialing/dialing/ringing/calling/talking screen.
The icon appears on the status bar.
Basic Call Features
To un-mute the microphone:
1. Press again on the idle/pre-dialing/dialing/ringing/calling/talking screen.
The icon disappears from the status bar.

Call Hold/Resume

You can place an active call on hold. Only one active call can be in progress at any time. Other calls can be made and received while placing the original call on hold. When you place a call on hold, your IP PBX may play music to the other party while waiting.
To place a call on hold:
1. Press the Hold soft key during a call.
The line key LED flashes green. The LCD screen indicates that the call is on hold.
Note
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The prompt message will display only if Missed Call Log for the line is enabled. Missed call log is
information, contact your system administrator.
To resume a held call:
To resume a held call:
1. Press the Resume soft key.
Multiple Calls on Hold:
If multiple calls are placed on hold, do one of the following:
- Press or to switch between the calls, and then press the Resume soft key to
retrieve the desired call.
- Press the corresponding line key to retrieve the call.
If more than one call is placed on hold, a numbered prompt appears on the LCD screen, for example “2/3”, indicating that this is the second call out of three calls.

Do Not Disturb (DND)

You can use DND to reject incoming calls automatically on the phone. The prompt message "n New Missed Call(s)" ("n" indicates the number of missed calls, e.g., 1 New Missed Call(s)) will
appear on the LCD screen, and callers will receive a busy message. All calls you receive while DND is enabled are logged to your missed calls list.
When DND feature is enabled, the IP phone supports displaying a large DND icon on the idle screen. For more information, contact your system administrator.
Note
configurable via web user interface at the path Account->Basic.
Do not disturb is local to the phone, and may be overridden by the server settings. For more
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