Yealink SIP-T21 User Manual

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Summary of Contents

Page 2

User Guide for the SIP-T21P/SIP-T21 IP Phone x

Page 3

User Guide for the SIP-T21P/SIP-T21 IP Phone 90 4. Enter the directed call pickup code in the Directed Call Pickup Code field. 5. Click Confirm to

Page 4

Basic Call Features 91 Group Call Pickup To enable the group call pickup via web user interface: 1. Click on Features->Call Pickup. 2. Select E

Page 5 - Quick Reference Guide

User Guide for the SIP-T21P/SIP-T21 IP Phone 92 To configure the group call pickup code on a per-line basis via web user interface: 1. Click on Accou

Page 6 -  Anonymous Call on page 93

Basic Call Features 93 You can also configure a DSS key as a group pickup key via phone user interface or web user interface. You can pick up a call

Page 7 - Table of Contents

User Guide for the SIP-T21P/SIP-T21 IP Phone 94 To place an anonymous call: 1. Using the specific line on the phone to place a call to phone B. The L

Page 8

Advanced Phone Features 95 This chapter provides operating instructions for the advanced features of the SIP-T21P/SIP-T21 IP phone. Topics include:

Page 9

User Guide for the SIP-T21P/SIP-T21 IP Phone 96 4. Press or , or the Switch soft key to select the desired line from the Account ID

Page 10

Advanced Phone Features 97 In the following figure, the LCD screen shows an incoming call from 2020 on the monitored line. Note When there is an

Page 11 - Overview

User Guide for the SIP-T21P/SIP-T21 IP Phone 98 4. Press or , or the Switch soft key to select Record from the Key Type field. 5.

Page 12

Advanced Phone Features 99 2. Press the record or URL record key again to stop recording. The recording icon disappears from the LCD screen and the

Page 13

Overview 1 This chapter provides the overview of the SIP-T21P/SIP-T21 IP phone. Topics include:  Hardware Component Instructions  Icon Instruction

Page 14

User Guide for the SIP-T21P/SIP-T21 IP Phone 100 4. Press or , or the Switch soft key to select Hot Desking from the Key Type field

Page 15

Advanced Phone Features 101 Intercom is a useful feature in an office environment to quickly connect with the operator or the secretary. You can pre

Page 16

User Guide for the SIP-T21P/SIP-T21 IP Phone 102 phone to automatically answer an incoming intercom call while there is already an active call on the

Page 17

Advanced Phone Features 103 Mute is disabled, the microphone works for intercom calls. Intercom Mute is disabled by default. Intercom Tone You can e

Page 18

User Guide for the SIP-T21P/SIP-T21 IP Phone 104 The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255. 6. Press the Save soft key

Page 19 - Getting Started

Advanced Phone Features 105 involved. The multicast paging key LED illuminates solid green. The following figure shows a multicast RTP session on th

Page 20 -  Ethernet Cable

User Guide for the SIP-T21P/SIP-T21 IP Phone 106 To configure multicast listening addresses via web user interface: 1. Click on Directory->Multica

Page 21

Advanced Phone Features 107 To configure MoH server via web user interface: 1. Click on Account. 2. Select the desired account from the pull-down

Page 22 - Power over Ethernet

User Guide for the SIP-T21P/SIP-T21 IP Phone 108 To configure an ACD key via phone user interface: 1. Press Menu->Features->DSS Keys. 2. Selec

Page 23

Advanced Phone Features 109 You can send and receive text messages using the SIP-T21P/SIP-T21 IP phone. New text messages can be indicated both acou

Page 24

User Guide for the SIP-T21P/SIP-T21 IP Phone 2 Hardware component instructions of the SIP-T21P/SIP-T21 IP phone are: Item Description ① LCD Screen Sh

Page 25

User Guide for the SIP-T21P/SIP-T21 IP Phone 110 2. Compose the new text message. You can press the abc soft key to change the input mode. 3. Press

Page 26

Advanced Phone Features 111 The LCD screen prompts “Delete Message?”. 4. Press the OK soft key to delete this message or the Cancel soft key to ca

Page 27 - Customizing Your Phone

User Guide for the SIP-T21P/SIP-T21 IP Phone 112 To configure voice mail access codes via phone user interface: 1. Press Menu->Messages->Voice

Page 28

Advanced Phone Features 113 will be indicated in three ways: a warning tone, a prompt message (including a voice mail icon) on the LCD screen, and t

Page 29

User Guide for the SIP-T21P/SIP-T21 IP Phone 114 5. Enter the period time in the MWI Subscription Period (Seconds) field. 6. Click Confirm to accep

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Advanced Phone Features 115 6. Click Confirm to accept the change. The IP phone will subscribe to the voice mail number for MWI service using Sub

Page 31

User Guide for the SIP-T21P/SIP-T21 IP Phone 116

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Troubleshooting 117 This chapter provides general troubleshooting information to help to solve the problems you might encounter when using your SIP-T2

Page 33

User Guide for the SIP-T21P/SIP-T21 IP Phone 118 How to obtain the MAC address of a phone when the phone is not powered on? Three ways you can obtain

Page 34

Troubleshooting 119  Check that the headset volume is adjusted to an appropriate level. Refer to Volume on page 24. What is the difference between u

Page 35

Overview 3 Icons appearing on the LCD screen are described in the following table: Icon Description Network is unavailable Registered successfully

Page 36

User Guide for the SIP-T21P/SIP-T21 IP Phone 120 Why can’t I send a SMS to any other phone? SMS depends on support from a SIP server. Contact your sys

Page 37 -  Remote Phone Book

Troubleshooting 121 4. Select the desired value from the pull-down list of RTP Encryption (SRTP). 5. Click Confirm to accept the change. Note How t

Page 38

User Guide for the SIP-T21P/SIP-T21 IP Phone 122 2. Click Reboot to reboot the phone. Note How to export PCAP trace? We may need you to provide a PC

Page 39

Troubleshooting 123 5. Click Export to open file download window, and then save the file to your local system. How to export system log? We may need

Page 40

User Guide for the SIP-T21P/SIP-T21 IP Phone 124 5. Mark the Local radio box in the Export System Log field. 6. Click Export to open file download

Page 41 - Adding Contacts Manually

Troubleshooting 125 To import the phone configurations via web user interface: 1. Click on Settings->Configuration. 2. Click Browse to locate a c

Page 42

User Guide for the SIP-T21P/SIP-T21 IP Phone 126 take 5 minutes to complete. Please don't power off!”. 4. Click OK to confirm upgrading. How to

Page 43

Regulatory Notices 127 Contact your Yealink Authorized Reseller for information about service agreements applicable to your product. TO THE FULL EXTE

Page 44

User Guide for the SIP-T21P/SIP-T21 IP Phone 128  Please place no heavy objects on the device in case of damage and deformation caused by the heavy l

Page 45

Appendix A-Time Zones 129 Time Zone Time Zone Name −11:00 Samoa −10:00 United States-Hawaii-Aleutian −10:00 United States-Alaska-Aleutian −09:00 U

Page 46

User Guide for the SIP-T21P/SIP-T21 IP Phone 4 Icon Description Keypad Lock Received Calls Placed Calls Missed Calls Recording box is full A c

Page 47

User Guide for the SIP-T21P/SIP-T21 IP Phone 130 Time Zone Time Zone Name +01:00 Hungary(Budapest) +01:00 Italy(Rome) +01:00 Luxembourg(Luxembourg) +0

Page 48

Index 131 A About This Guide v Account Management 54 Account Registration 54 Adding Contacts 31 Adding Groups 29 Administrator pa

Page 49

User Guide for the SIP-T21P/SIP-T21 IP Phone 132 Message Waiting Indicator 112 Multicast Paging 103 Music on Hold 106 N Network Conference

Page 50

Overview 5 Line key LED (configured as a BLF key) LED Status Description Solid green The monitored user is idle. Fast flashing green (200ms) The monit

Page 51

User Guide for the SIP-T21P/SIP-T21 IP Phone 6 address (e.g., http://192.168.0.10 or 192.168.0.10) in the address bar of web browser on your PC. The d

Page 52

Overview 7 Options Phone User Interface Web User Interface --DND √ --Call Forward √ --Call Transfer √ --Call Waiting √ --Conference --Call Park √ --C

Page 53

User Guide for the SIP-T21P/SIP-T21 IP Phone 8 The following table shows documentations available for the SIP-T21P/SIP-T21 IP phone. Name Contents Whe

Page 54

Getting Started 9 This chapter provides basic installation instructions and information for obtaining the best performance with the SIP-T21P/SIP-T21

Page 55

Copyright © 2013 YEALINK NETWORK TECHNOLOGY CO., LTD Copyright © 2013 Yealink Network Technology CO., LTD. All rights reserved. No parts of this pu

Page 56 - HEADSET key again

User Guide for the SIP-T21P/SIP-T21 IP Phone 10  Power Adapter  Handset & Handset Cord  Ethernet Cable  Quick I

Page 57

Getting Started 11 If your phone is already installed, proceed to Phone Initialization on page 13. This section introduces how to install the phone:

Page 58

User Guide for the SIP-T21P/SIP-T21 IP Phone 12 AC Power To connect the AC power: 1. Connect the DC plug on the power adapter to the DC5V port on the

Page 59

Getting Started 13 After your phone is powered on, the system boots up and performs the following steps: Automatic Phone Initialization The phone fin

Page 60 - Conf soft key during a call

User Guide for the SIP-T21P/SIP-T21 IP Phone 14 3. Enter the user name (admin) and password (admin) in the login page. 4. Click Confirm to login. T

Page 61 - Key Type (Hold)

Getting Started 15 2. Press or to select IPv4, IPv6 or IPv4 & IPv6 from the IP Mode field. 3. Press the Save soft key to accept

Page 62

User Guide for the SIP-T21P/SIP-T21 IP Phone 16 will perform a PPP negotiation to obtain the IP address. Contact your system administrator for the PPP

Page 63 - Type (Dir)

Customizing Your Phone 17 You can customize your SIP-T21P/SIP-T21 IP phone by personally configuring certain settings, for example, contrast, langua

Page 64

User Guide for the SIP-T21P/SIP-T21 IP Phone 18 The default language of the phone user interface is English. The phone will detect and use the same la

Page 65

Customizing Your Phone 19 3. Click Confirm to accept the change. Text displayed on the web user interface will change to the selected language. The

Page 66

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 designe

Page 67

User Guide for the SIP-T21P/SIP-T21 IP Phone 20 4. Press the Save soft key to accept the change. The date and time displayed on the LCD screen will c

Page 68

Customizing Your Phone 21 To change the administrator password via phone user interface: 1. Press Menu->Settings->Advanced Settings (password

Page 69

User Guide for the SIP-T21P/SIP-T21 IP Phone 22 phone until unlocked. Function Keys: The function keys are locked. You cannot use the MESSAGE, RD

Page 70

Customizing Your Phone 23 2. Enter the desired interval in the Phone Lock Time Out (0~3600s) field. 3. Click Confirm to accept the change. Note T

Page 71

User Guide for the SIP-T21P/SIP-T21 IP Phone 24 To unlock the keypad via phone user interface: 1. Press any locked key, the LCD screen prompts “Pleas

Page 72

Customizing Your Phone 25 To adjust the volume when the phone is idle: 1. Press to adjust the ringer volume. Note To ad

Page 73 - Basic Call Features

User Guide for the SIP-T21P/SIP-T21 IP Phone 26 To select a ring tone for the account via web user interface: 1. Click on Account. 2. Select the des

Page 74 -  Using the headset

Customizing Your Phone 27 3. Click Upload to upload the file. Note This section provides the operating instructions for managing contacts. Topics i

Page 75 -  Using the handset

User Guide for the SIP-T21P/SIP-T21 IP Phone 28 5. To adjust the display order of enabled lists, select the desired list and then click or

Page 76

Customizing Your Phone 29 To add a group to the local directory: 1. Press the Dir soft key. The IP phone enters the local directory directly as the

Page 77

Yealink SIP-T21P/SIP-T21 firmware contains third-party software under the GNU General Public License (GPL). Yealink uses software under the specific

Page 78

User Guide for the SIP-T21P/SIP-T21 IP Phone 30 3. Press the Option soft key, and then select Detail from the prompt list. 4. Press or

Page 79

Customizing Your Phone 31 You can add contacts to the local directory in the following ways:  Manually  From call history  From remote phone b

Page 80

User Guide for the SIP-T21P/SIP-T21 IP Phone 32 7. Press the Add soft key to accept the change or the Back soft key to cancel. Note Adding Contacts f

Page 81

Customizing Your Phone 33 To edit a contact in the local directory: 1. Press the Dir soft key. The IP phone enters the local directory directly as

Page 82

User Guide for the SIP-T21P/SIP-T21 IP Phone 34 2. Select the desired group and then press the Enter soft key. 3. Press or to sele

Page 83

Customizing Your Phone 35 To search for a contact in the local directory: 1. Press the Dir soft key. The IP phone enters the local directory direct

Page 84

User Guide for the SIP-T21P/SIP-T21 IP Phone 36 The LCD screen displays the search results in the adjusted order. 6. Click Confirm to accept the cha

Page 85

Customizing Your Phone 37 You can manage your phone’s local directory via phone user interface or web user interface. But you can only import or exp

Page 86 - Static Forwarding

User Guide for the SIP-T21P/SIP-T21 IP Phone 38 6. (Optional.) Select the contact information you want to import into the local directory from the pu

Page 87

Customizing Your Phone 39 3. Enter the name and the office, mobile or other numbers in the corresponding fields. 4. Press or ,

Page 88

About This Guide v Thank you for choosing the SIP-T21P/SIP-T21 IP phone, exquisitely designed to provide business telephony features, such as Call H

Page 89

User Guide for the SIP-T21P/SIP-T21 IP Phone 40 You can access your corporate directory through your phone. You can add local contacts, search for a c

Page 90

Customizing Your Phone 41 The phone connects to load the corporate directory, and then the corporate contact list appears on the LCD screen. 3. Pre

Page 91

User Guide for the SIP-T21P/SIP-T21 IP Phone 42 3. Enter the refresh period of corporate directory in the Search Flash Time (Seconds) field. The de

Page 92 - Dynamic Forwarding

Customizing Your Phone 43 4. Press the Option soft key, and then select Detail from the prompt list. The detailed information of the entry appears

Page 93

User Guide for the SIP-T21P/SIP-T21 IP Phone 44 The LCD screen prompts "Delete all records?". 5. Press the OK soft key to confirm the dele

Page 94

Customizing Your Phone 45 5. Click Confirm to accept the change. Note Physically connect your headset and activate the headset mode for use. For mo

Page 95

User Guide for the SIP-T21P/SIP-T21 IP Phone 46 2. Select Enabled from the pull-down list of Headset Prior. 3. Click Confirm to accept the change.

Page 96

Customizing Your Phone 47 To configure the line key via phone user interface: 1. Press Menu->Features->DSS Keys. 2. Select the desired line

Page 97

User Guide for the SIP-T21P/SIP-T21 IP Phone 48 For more information, contact your system administrator. Speed Dial You can use this key feature to sp

Page 98 - Directed Call Pickup

Customizing Your Phone 49 DTMF You can use this key feature to send the specification of arbitrary key sequences via DTMF. Dependencies: Type (Key E

Page 99

User Guide for the SIP-T21P/SIP-T21 IP Phone vi  Anonymous Call on page 93 Documentations of the SIP-T21 IP phone have also been added. Major update

Page 100

User Guide for the SIP-T21P/SIP-T21 IP Phone 50 XML Browser You can use this key feature to access the XML browser quickly. The XML browser allows you

Page 101 - Group Call Pickup

Customizing Your Phone 51 Usage: Press the DSS key to forward an incoming call to the number specified in the Value field. Note Transfer You can use

Page 102

User Guide for the SIP-T21P/SIP-T21 IP Phone 52 Dependencies: Type (Key Event) Key Type (DND) Usage: When DND is in phone mode: 1. Press the DSS ke

Page 103

Customizing Your Phone 53 3. Configure the network parameters in the corresponding fields. 4. Press the Next soft key. 5. Configure the auto prov

Page 104

User Guide for the SIP-T21P/SIP-T21 IP Phone 54 You can click Reset to default to reset custom settings to defaults. Note You can register one or mult

Page 105 - Advanced Phone Features

Customizing Your Phone 55 Incoming calls to this account will be distributed evenly among the available line keys. Outgoing calls will be distribute

Page 106

User Guide for the SIP-T21P/SIP-T21 IP Phone 56 To add a replace rule via web user interface: 1. Click on Settings->Dial Plan->Replace Rule. 2.

Page 107

Customizing Your Phone 57 3. Click Del to delete the replace rule(s). Note You can configure one or more dial-now rules (up to 100) on your phone.

Page 108

User Guide for the SIP-T21P/SIP-T21 IP Phone 58 phone to dial out the phone number automatically, which matches a dial-now rule, after the specified d

Page 109

Customizing Your Phone 59 For more information on the valid values of Account field, refer to Replace Rule on page 55. 4. Click Confirm to accept

Page 110

Table of Contents vii About This Guide ... v In This Guide ...

Page 111

User Guide for the SIP-T21P/SIP-T21 IP Phone 60 For more information on the valid values of Account field, refer to Replace Rule on page 55. 4. Clic

Page 112

Customizing Your Phone 61 For multiple numbers, enter a comma between every two emergency numbers. The default emergency numbers are 110, 911 and 12

Page 113

User Guide for the SIP-T21P/SIP-T21 IP Phone 62 3. Enter the desired delay time in the Inter Digit Time (1~14s) field. The default delay time is 4s.

Page 114

Basic Call Features 63 The SIP-T21P/SIP-T21 IP phone is designed to be easily used like a regular phone on a public switched telephone network (PSTN

Page 115

User Guide for the SIP-T21P/SIP-T21 IP Phone 64  Using the speakerphone  Using the headset You can also dial the number first, and then choose the

Page 116

Basic Call Features 65 To place a call using the headset: Do one of the following: - With the optional headset connected, press to activ

Page 117

User Guide for the SIP-T21P/SIP-T21 IP Phone 66 Answering When Not in Another Call Call duration and destination will always appear on the LCD screen

Page 118

Basic Call Features 67 - If you are using the speakerphone, press or the Cancel soft key. Note To redial the last dialed number from you

Page 119

User Guide for the SIP-T21P/SIP-T21 IP Phone 68 3. Click Confirm to accept the change. Note To view placed calls list when the phone is in the pre-di

Page 120

Basic Call Features 69 Auto answer is configurable via web user interface at the path Account->Basic. Note You can enable auto redial to redial t

Page 121

User Guide for the SIP-T21P/SIP-T21 IP Phone viii Volume ...

Page 122

User Guide for the SIP-T21P/SIP-T21 IP Phone 70 1. Press the OK soft key to activate auto redial. The following prompt will appear on the LCD scree

Page 123

Basic Call Features 71 1. Press the OK soft key, the phone returns to the idle screen and call completion is activated. When the called party becom

Page 124

User Guide for the SIP-T21P/SIP-T21 IP Phone 72 The LCD screen indicates that the call is on mute. To un-mute a call: 1. Press again to un-

Page 125

Basic Call Features 73 for example “2/3”, indicating that this is the second call out of three calls. You can use DND to reject incoming calls autom

Page 126

User Guide for the SIP-T21P/SIP-T21 IP Phone 74 The icon on the idle screen indicates that DND is enabled. Incoming calls will be rejected automat

Page 127 - Troubleshooting

Basic Call Features 75 The LCD screen displays a list of the accounts on the phone. 2. Press the All On soft key to activate DND for all accounts.

Page 128

User Guide for the SIP-T21P/SIP-T21 IP Phone 76 3. Enter the numbers in the DND Authorized Numbers field. For multiple numbers, enter a comma between

Page 129

Basic Call Features 77 forward for each or all accounts. Two call forward modes:  Phone (default): Call forward is effective for the phone system.

Page 130

User Guide for the SIP-T21P/SIP-T21 IP Phone 78 3. Depending on your selection: a.) If you select Always Forward: 1) Press or

Page 131

Basic Call Features 79 before forwarding from the After Ring Time field. The default ring time is 12 seconds. 4) (Optional.) Enter the no answer

Page 132

Table of Contents ix Busy Lamp Field (BLF) ... 9

Page 133

User Guide for the SIP-T21P/SIP-T21 IP Phone 80 b.) If you select Busy Forward, you can enable it for a specific account. 1) Press or

Page 134

Basic Call Features 81 4) (Optional.) Enter the no answer forward on code or off code respectively in the On Code or Off Code field. You can als

Page 135

User Guide for the SIP-T21P/SIP-T21 IP Phone 82 Press the Save soft key to accept the change. To disable call forward in custom mode for a specific ac

Page 136

Basic Call Features 83 3. Press or the Tran soft key to complete call transfer. Then the call is connected to the number to which you are

Page 137 - Regulatory Notices

User Guide for the SIP-T21P/SIP-T21 IP Phone 84 If you are using a handset, call transfer can be completed by hanging up the handset. You can cancel c

Page 138

Basic Call Features 85 The SIP-T21P/SIP-T21 IP phone supports up to 3 parties (including yourself) in a conference call. This is the default method

Page 139 - Appendix A-Time Zones

User Guide for the SIP-T21P/SIP-T21 IP Phone 86 advance. To configure network conference via web user interface: 1. Click on Account. 2. Select the

Page 140

Basic Call Features 87 to the conference. 8. Repeat steps 5 to 7 until you have added all intended parties. The procedures to set up a network conf

Page 141

User Guide for the SIP-T21P/SIP-T21 IP Phone 88 parked call. The system establishes call between phone C and B. Note You can use call pickup to answer

Page 142

Basic Call Features 89 2. Select Enabled from the pull-down list of Directed Call Pickup. 3. Click Confirm to accept the change. To configure the

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