Yealink SIP-T20P User Manual
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Yealink SIP-T20P User Manual

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  • Page 2 Copyright © 2012 YEALINK NETWORK TECHNOLOGY Copyright © 2012 Yealink Network Technology CO., LTD. All rights reserved. No parts of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, photocopying, recording, or otherwise, for any purpose, without the express written permission of Yealink Network Technology CO., LTD.
  • Page 3 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.

  • Page 5: About This Guide

    SIP-T20P IP phone. If this is your first time using SIP-T20P IP phone, we recommend that you first refer to the Quick Installation Guide and Quick Reference Guide. Documents are available for download at: http://www.yealink.com/Support.aspx.
  • Page 6 User Guide SIP-T20P IP Phone Call Forward on page  Busy Lamp Field (BLF) on page  Shared Line on page  BLF List on page ...

  • Page 7: Table Of Contents

    Table of Contents About This Guide ..............v In This Guide ......................... v Changes from Previous Versions ..................v Changes from Version 61.1 ....................v Table of Contents ..............vii Overview .................. 1 Hardware Component Instructions ..................1 Icon Instructions ........................3 LED Instructions ........................
  • Page 8 User Guide SIP-T20P IP Phone Local Directory ........................ 24 Blacklist ..........................28 Call History Management ....................28 System Customizations ...................... 29 Logo Customization ......................29 Headset Use ........................30 DSS Keys .......................... 31 Account Management ....................38 Dial Plan ........................... 39 Emergency Number ......................

  • Page 9: Table Of Contents

    Table of Contents Incoming Intercom Calls ....................77 Multicast Paging ......................... 79 Sending RTP Stream ....................... 79 Receiving RTP Stream ..................... 80 Music on Hold ........................81 Automatic Call Distribution (ACD)..................82 Voice Mail ........................... 83 Message Waiting Indicator (MWI)................... 85 Troubleshooting ..............

  • Page 11: Overview

     LED Instructions  User Interfaces  Documentations  If you require additional information or assistance with your new phone, contact your system administrator. The main hardware components of the SIP-T20P IP phone are the LCD screen and the keypad.
  • Page 12 User Guide SIP-T20P IP Phone Hardware component instructions of the SIP-T20P IP phone are: Item Description Shows information about calls, messages, time, date and other relevant data. • Call information — Caller ID, call duration ① LCD Screen • Icons (for example, •...
  • Page 13 Overview Icons appear on the phone LCD screen are described in the following table: Icon Description Network is unavailable Hands-free speakerphone mode Handset mode Headset mode Numeric input mode Multi-lingual lowercase letters input mode Multi-lingual uppercase letters input mode Alphanumeric input mode Voice Mail Auto Answer Do Not Disturb...
  • Page 14 User Guide SIP-T20P IP Phone Icon Description Recording starts successfully Recording cannot be started Recording cannot be stopped...
  • Page 15 Overview Power Indicator LED LED Status Description Solid green The phone is powered on. Flashing green The phone is ringing. The phone is powered off. Line key LED (private line) LED Status Description Solid green The line is in conversation. Fast flashing green The line receives an incoming call, the phone is ringing.
  • Page 16 User Guide SIP-T20P IP Phone There are two ways to customize specific configurations on your SIP-T20P IP phone: Using the User Interface on the IP phone.  Using the User Interface in an Internet browser window from your PC. ...
  • Page 17 Overview Option Phone User Interface Web User Interface Basic Call Features --Auto Answer √ --Auto Redial √ --Call Completion √ --Call Forward √ --Call Waiting √ √ --Call Park √ --Call Pickup √ --Call Return √ --Conference --Anonymous Call √ --Anonymous Call Rejection √...

  • Page 18: Phone User Interface

    --STUN Server √ Note The table above lists most of the feature options. Please refer to the relevant sections for more information. The following table shows documentations available for the SIP-T20P IP phone. Name Contents Where found Format/ Language Quick Installation...

  • Page 19: Getting Started

     Basic Network Settings  Registration  Idle Screen  If you require additional information or assistance with your new phone, contact your system administrator. The following components are included in your SIP-T20P IP phone package: SIP-T20P IP phone ...
  • Page 20 User Guide SIP-T20P IP Phone Phone Stand  Power Adapter  Handset & Handset Cord  Ethernet Cable  Quick Installation Guide & Quick Reference Guide  CD-ROM  Check this list before installation. If you find anything missing, contact your system...
  • Page 21 Getting Started If your phone is already installed, proceed to Phone Initialization on page 13. This section introduces how to install the phone with the components in the packaging contents: Attach the Stand  Connect the Handset and optional Headset ...

  • Page 22: Power Over Ethernet

    Connect the supplied Ethernet cable between the Internet port on the phone and the Internet port in your network or switch/hub device port. Power over Ethernet Using a regular Ethernet cable, the SIP-T20P IP phone can be powered from a PoE (IEEE 802.3af) compliant switch or hub.
  • Page 23 Getting Started To connect the PoE: Connect the Ethernet cable between the Internet port on the phone and an available port on the in-line power switch/hub. Note If in-line power is provided, you don’t need to connect the AC adapter. Make sure the Ethernet cable and switch/hub is PoE compliant.
  • Page 24 User Guide SIP-T20P IP Phone You can view the system status of your phone via phone user interface or web user interface. Available information of phone status includes: Network status including WAN port and LAN port information.  Phone status including device model, firmware version and MAC address.
  • Page 25 Getting Started If you are using an xDSL modem, you can connect your phone to the Internet via PPPoE mode. You can set a WAN port to be a PPPoE port. The PPPoE port will perform a PPP negotiation to obtain the IP address. Contact your system administrator for the PPPoE username and password.
  • Page 26 User Guide SIP-T20P IP Phone...

  • Page 27: Customizing Your Phone

    Customizing Your Phone You can customize your SIP-T20P IP phone by configuring the setting for time and date, and ring tones, for example. You can handle incoming calls from different contacts in different ways. This chapter provides basic operating instructions for customizing your phone. The...

  • Page 28: Time And Date

    User Guide SIP-T20P IP Phone Press to accept the change. Text appears on the LCD screen will change to the selected language. To change the language for web user interface: Click on Phone->Preference. Select the desired language from the pull-down list of Web Language.

  • Page 29: Administrator Password

    Customizing Your Phone Enter the specific time in the Time field. 1. Date (D-M-Y): 17-07-12 Press to accept the change. The time that displays on the LCD screen will change accordingly. To configure the time format via phone user interface: Press Select Settings->Basic->Time &...

  • Page 30: Keypad Lock

    User Guide SIP-T20P IP Phone You can set the ―#‖ or ―*‖ to act as the send key while dialing a call. To set the send key via phone user interface: Press Select Features->Key as Send. Key as Send: ◄ * # ►...

  • Page 31: Keypad Lock

    Customizing Your Phone To set the keypad lock PIN via phone user interface: Press Setting->Basic->Phone Unlock. Enter the Current PIN, New PIN and Confirm PIN in the corresponding fields. 1. Current PIN: Click Confirm to accept the change. To activate the keypad lock via phone user interface: Press Select Settings->Advanced (password: admin) ->Keypad Lock.
  • Page 32 User Guide SIP-T20P IP Phone Click Confirm to accept the change. Note The default time out is 0 seconds, that is, you can long press to lock the keypad only. the time out for automatic keypad lock You can configure via web user interface only.

  • Page 33: Volume

    Customizing Your Phone To adjust the volume: Press to adjust the ringer volume when the phone is in the idle screen. 1009 ___________ When the phone is during a call, press to adjust the volume of currently used audio device (handset, speakerphone or headset). 1008 ___________ Ring tones are used to indicate incoming calls.

  • Page 34: Contact Management

    User Guide SIP-T20P IP Phone You can also customize ring tones for your phone, contact your system administrator for more information. Note The ring tone for an incoming call on the phone may be different. For example, when the phone receives an incoming call from a contact stored in the local directory, it will play...
  • Page 35 Customizing Your Phone Press to add a new contact. 1. Name: Press to switch the input mode. Enter the Name and the Office, Mobile or Other numbers. Press to select the desired account from the Account field. If Auto is selected, the phone will use the first available account when placing calls to the contact from the local directory.
  • Page 36 User Guide SIP-T20P IP Phone Select the desired contact and press to select Edit. 1. Name: john Press to select the contact information and then edit. Press to accept the change. To delete a contact from the local directory: Press Select Local Directory->Contact List.

  • Page 37: Importing/Exporting Contact Lists

    Customizing Your Phone To search for a contact in the local directory: Press Select Local Directory->Contact List. Press to select Enter and then press Enter a few continuous characters of the contact name or continuous numbers of the contact phone number using the keypad. Search: tom Press The contacts whose name or phone number matches the characters you entered...

  • Page 38: Blacklist

    Local Directory on page 24. The SIP-T20P IP phone maintains call history lists of Dialed Calls, Received Calls, Missed Calls and Forwarded Calls. The call history lists support to store 100 entries in all. You can check the call history, dial a call, add a contact or delete an entry from the call history list.
  • Page 39 Customizing Your Phone The detailed information of the entry appears on the LCD screen. To dial a call from the call history list: Press The LCD screen displays the call list. Press to switch between Dialed Calls, Received Calls, Missed Calls and Forwarded Calls.

  • Page 40: Headset Use

    User Guide SIP-T20P IP Phone Click Confirm to accept the change. Reboot the phone, the text logo will be shown on the LCD screen. Note The maximum length of text logo is 15 characters. Physically connect your headset, refer to...

  • Page 41: Dss Keys

    There are two types of DSS keys: Line Keys and Programmable Keys. The details will be introduced as following. SIP-T20P IP phone supports 2 Line keys. You can assign predefined functionalities to the line keys located on the right of the phone.
  • Page 42 User Guide SIP-T20P IP Phone Direct Pickup  Group Pickup  DTMF  Prefix  Local Group  Conference  Forward  Transfer  Hold   Redial  Group Listening  Public Hold  Private Hold  Zero Touch ...
  • Page 43 Customizing Your Phone Direct Pickup You can use this key feature to answer someone else’s incoming call on the phone. Type (Key Event) Dependencies: Key Type (Direct Pickup) Account ID (the account this feature will be applied to) Value (the direct pickup code followed by the specific phone number) Usage: Press the DSS key on your phone when the specific phone number receives an incoming call.

  • Page 44: Call Forward On

    User Guide SIP-T20P IP Phone Local Group You can use this key feature to access the contact group in the local directory quickly. For more information, refer to Local Directory on page 24. Type (Key Event) Dependencies: Key Type (Local Group)
  • Page 45 Customizing Your Phone Usage: When the transfer mode on DSS key is Blind Transfer, press the DSS 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 DSS key to dial ...
  • Page 46 User Guide SIP-T20P IP Phone Redial You can use this key feature to access the Dialed Call list by pressing the DSS key when the phone is idle, then you can select an entry to redial. Type (Key Event) Dependencies:...
  • Page 47 Customizing Your Phone Key Type (Private Hold) Usage: Press the DSS key when there is an active call on the shared line. The active call is placed on private hold. Press the DSS key again to retrieve the private held call. Note When the DSS key is used in the private line, it performs the same as the HOLD key during a call.
  • Page 48 User Guide SIP-T20P IP Phone You can register one or multiple accounts on the SIP-T20P IP phone. You can also configure each line key associated with an account or configure multiple line keys associated with an account. To register an account via phone user interface: Press Select Settings->Advanced->Accounts.

  • Page 49: Dial Plan

    Customizing Your Phone Dial plan is a string of characters that governs the way your SIP-T20P IP phone processes the inputs received from your phone keypad. The SIP-T20P IP phone supports the following dial plan features: Replace Rule  Dial-now ...
  • Page 50 User Guide SIP-T20P IP Phone to dial out. To add a replace rule via web user interface: Click on Phone->Dial Plan->Replace Rule>>. Enter the string (e.g. 2xx) in the Number field. Enter the string (e.g. 12345) in the Replace field.
  • Page 51 Customizing Your Phone When you enter the number ―1234‖ using the keypad, the phone will dial out ―1234‖ automatically without pressing any key. Note You can also edit or delete the dial-now rule, refer to Replace Rule on page for more information.

  • Page 52: Emergency Number

    The default emergency numbers are 112, 911 and 110. Click Confirm to accept the change. You can enable the live dialpad feature on the SIP-T20P IP phone, which enables the IP phone to automatically dial out the phone number without pressing any other key. You can also configure a period of time before automatically dialing out the phone number.

  • Page 53: Hot Line

    Customizing Your Phone You can dial a hotline number immediately once you lift the handset, press the speakerphone key or press a line key. You can also configure a period of delay time to dial out the hotline number, the phone will dial out the hotline number automatically after the specified delay time.
  • Page 54 User Guide SIP-T20P IP Phone...

  • Page 55: Basic Call Features

    Basic Call Features The SIP-T20P 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.
  • Page 56 User Guide SIP-T20P IP Phone 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 search the call history, the local contact directory and dial from the search results.
  • Page 57 To permanently enable your headset, refer to Headset Prior on page 30. To place multiple calls: You can have more than one call on your SIP-T20P IP phone. Press the line key. The active call is placed on hold. Enter the desired number using the keypad.
  • Page 58 User Guide SIP-T20P IP Phone To answer a call using the handset: 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 headset mode deactivated, press With the handset on-hook and headset mode deactivated, press the line key (the line LED flashes green).

  • Page 59: Redialing Numbers

    Basic Call Features To redial the last placed call from your phone: Press twice. A call to your last placed call is attempted. To redial a previously placed call from your phone: Press when the phone is idle. Press to select the desired entry from the dialed calls list, and then press You can enable the auto answer feature for a line.

  • Page 60: Auto Redial

    User Guide SIP-T20P IP Phone You can enable the auto redial feature to redial the phone number automatically when the called party is busy. You can also configure the times of the auto redial and the time to wait between redial attempts.

  • Page 61: Call Completion

    Basic Call Features You can use the call completion feature to notify the caller of a failed call when the callee becomes available to receive a call. To configure call completion via phone user interface: Press Select Features->Call Completion. 1. Call Completion: ◄...

  • Page 62: Call Return

    User Guide SIP-T20P IP Phone You can press a call return key to place a call back to the last incoming call. To configure a call return key via phone user interface: Press Select Features->DSS Keys. Select a desired DSS key.
  • Page 63 Basic Call Features message to the other party while waiting. To place a call on hold: Press during a call. The phone LCD screen shows the call is on hold and the line LED flashes green. 1234 Hold 01:20 Note The phone will beep softly every 30 seconds to remind you that you still have a call on hold.
  • Page 64 User Guide SIP-T20P IP Phone Mark the desired radio box in the DND Key Mode field. Click Confirm to accept the change. Note You can configure the DND key mode via web user interface only. To activate DND in phone mode: Press Select Features->DND.

  • Page 65: Call Forward

    Basic Call Features To activate DND in custom mode: Press Select Features->DND. Press to select the desired account from the User Name field. Select Enable from the DND field. 2. DND: ◄ *Enable ► (Optional.) Enter the DND on code or off code respectively in the DND On Code or DND Off Code field.
  • Page 66 User Guide SIP-T20P IP Phone Busy Forward: Incoming calls are immediately forwarded if the phone is busy.  No Answer Forward: Incoming calls are forwarded if not answered after a period  of time. You can configure the phone to support the call forward feature for the phone system, or for each account.
  • Page 67 Basic Call Features Press to select the forwarding type, and then press Depending on your selection: a.) If you select Always: 1) Press to select Enable from the Always field. 2) Enter the destination number you want to forward all incoming calls to in the Forward to field.
  • Page 68 User Guide SIP-T20P IP Phone To enable call forward in custom mode: Press Select Features->Forward. Press to select the desired account, and then press Press to select the forwarding type, and then press Depending on your selection: a.) If you select Always: 1) Press to select Enable from the Always field.
  • Page 69 Basic Call Features Press to accept the change. icon appears on the LCD screen and the prompt ―FWD:‖ appears in front of the account. FWD: 1003 24 Jul 10:39 You can also configure call forward feature via web user interface at the path Phone->Features->Forward>>.

  • Page 70: Dynamic Forwarding

    User Guide SIP-T20P IP Phone Dynamic Forwarding To forward an incoming call to another party: When the phone is ringing, press Enter the number you want to forward the incoming call to. FWD: 1234 Press The LCD screen prompts a call forwarded message.

  • Page 71: Call Waiting

    Basic Call Features Press to dial out. After the party answers the call, press to complete the transfer. If you are using a handset, the transfer can be completed by hanging up the handset. You can cancel the transfer before the call is connected by pressing You can enable or disable the call waiting feature on the phone.

  • Page 72: Local Conference

    User Guide SIP-T20P IP Phone The SIP-T20P IP phone supports up to 3 parties (including yourself) in a conference call. This is called Local Conference and is the default method of conference. To set up a local conference call: Place a call to the first party.

  • Page 73: Call Park

    Basic Call Features Enter the conference URI (e.g. conference@example.com) in the Conference URI field. Click Confirm to accept the change. To set up a network conference call: Place a call to the first party. Press to create a new call. The active call is placed on hold.

  • Page 74: Call Pickup

    You can use call pickup feature to answer someone else’s incoming call on the phone. The SIP-T20P IP phone supports the direct call pickup and group call pickup features. Direct call pickup is used for picking up a call that is ringing at a specific phone number.

  • Page 75: Group Call Pickup

    Basic Call Features Select Features->DSS Keys. Select the desired DSS key. Press to select Key Event from the Type field. Press to select Direct Pickup from the Key Type field. Press to select the desired line from the Account ID field. Enter the pickup code followed by the specific phone number you want to pick up in the Value field.

  • Page 76: Anonymous Call

    User Guide SIP-T20P IP Phone To pick up a call in the group: Press the group pickup key on your phone when a phone number in the group receives an incoming call. The incoming call is answered on your phone.

  • Page 77: Anonymous Call Rejection

    Basic Call Features You can use anonymous call rejection feature to reject incoming calls from anonymous callers. Anonymous call rejection automatically rejects incoming calls from callers who deliberately block their identities and numbers from showing up. To configure anonymous call rejection via phone user interface: Press Select Features->Anonym Call.
  • Page 78 User Guide SIP-T20P IP Phone...

  • Page 79: Multicast Paging

    Advanced Phone Features This chapter provides operating instructions for the advanced features of the SIP-T20P IP phone. The topics include: Busy Lamp Field (BLF)  BLF List  Shared Line  Call Recording  Intercom  Multicast Paging  Music on Hold ...
  • Page 80 User Guide SIP-T20P IP Phone (Optional.)Enter the pickup code in the Extension field. 1. Type: ◄ BLF ► Press to accept the change. You can also configure the BLF key via web user interface at the path Phone->DSS Keys. When the monitored phone is ringing, you can enable audio alert for BLF pickup feature...

  • Page 81: Call Transfer

    Advanced Phone Features In the following figure, the phone LCD screen shows an incoming call from 1007 on the monitored user. 1006<-1007 When there is a conversation on the IP phone, you can handle the active call differently depending on the transfer mode on DSS key. To configure the transfer mode on DSS key via web user interface: Click on Phone->Features->Transfer Settings>>.

  • Page 82: Blf List

    User Guide SIP-T20P IP Phone You can use the BLF List feature to monitor a list of users defined by your system administrator. For example, your system administrator enables BLF List, and creates a BLF List URI (e.g., BLFList@example.com) including a list of users on the server. The BLF List keys on the IP phone can present the status of those users.
  • Page 83 Advanced Phone Features incoming call to the extension number of the boss, both the phones of the boss and the secretary will ring simultaneously. Either the boss or the secretary can answer the call. Calls on shared line can be placed on hold or barged in. Note The shared Line feature is not available on all servers.

  • Page 84: Call Recording

    LED Instructions on page 5. You can record calls by pressing a record key on the SIP-T20P IP phone. There are 2 different ways of configuring call recording and they even work differently: Record: the phone sends SIP INFO message containing a specific header to trigger ...
  • Page 85 Advanced Phone Features URL Record: the phone sends HTTP URL request to trigger a recording. Contact your  system administrator for the predefined URL. Note The record feature is not available on all servers. Contact your system administrator for more information. To configure a Record key via phone user interface: Press Select Features->DSS Keys.

  • Page 86: Intercom

    User Guide SIP-T20P IP Phone When the phone prompts you to answer an incoming call  The Record/ URL Record key is not available: When there are no connected calls on your phone  When you place a new call ...

  • Page 87: Incoming Intercom Calls

    Press the intercom key again or to end the intercom call. By default, the SIP-T20P IP phone supports to answer an incoming intercom call automatically. The phone automatically plays a warning tone when it receives an incoming intercom call. In addition, you can enable the phone to mute the microphone when it automatically answers an incoming intercom call.
  • Page 88 User Guide SIP-T20P IP Phone Make the desired changes. 1. Accept Intercom: ◄ *Enable ► Press to accept the change. You can also configure these specific parameters via web user interface at the path Phone ->Features->Intercom Settings>>. Accept Intercom You can enable or disable the phone to automatically answer an incoming intercom call.
  • Page 89 Advanced Phone Features You can use multicast paging to quickly and easily forward time sensitive announcements out to people within the multicast group. You can configure a multicast paging key on the phone, which allows you to send a Real Time Transport Protocol (RTP) stream to the pre-configured multicast address(es) without involving SIP signaling.

  • Page 90: Receiving Rtp Stream

    User Guide SIP-T20P IP Phone To send RTP stream: Press the multicast paging key when the phone is idle. The phone sends RTP to a preconfigured multicast address (IP: Port). Any phone in the local network then listens to the RTP on the preconfigured multicast address (IP: Port).
  • Page 91 Advanced Phone Features Paging Priority Active You can enable or disable this feature to decide how the phone handles the incoming multicast paging calls, when there is already a multicast paging call on the phone. If enabled, the phone will ignore the incoming multicast paging call with a lower priority, otherwise, the phone will play the incoming multicast RTP and place the previous multicast paging call on hold.
  • Page 92 The ACD feature on the SIP-T20P IP phone allows the ACD system to distribute calls from large volumes of incoming calls to the registered IP phone users. To use this feature, you should configure an ACD key in advance.
  • Page 93 ACD key can be in progress on your phone. You can leave voice mails for someone else on the SIP-T20P IP phone. You can also listen to the voice mails stored in a centralized location. When receiving a new voice mail, the phone will play a warning tone and the MESSAGE key LED will illuminate.
  • Page 94 User Guide SIP-T20P IP Phone Select Messages->Set Voice Mail. 1. Account 1 No. : Press to select the account you want to set. Press to select the proper input mode and then enter the voice mail access code (e.g. *88).
  • Page 95 This is cleared only when you retrieve all voice mails or delete them. For some particular servers, the MWI service is unsolicited. So the SIP-T20P IP phone just need to handle the MWI messages sent from the server. But for some servers, the MWI service is solicited.
  • Page 96 User Guide SIP-T20P IP Phone...

  • Page 97: Troubleshooting

    Troubleshooting This chapter provides general troubleshooting information to help you solve the problems you might encounter when using your SIP-T20P IP phone. If you require additional information or assistance with your new phone, contact your system administrator. Why is the phone LCD screen blank? Ensure your phone is properly plugged into a functional AC outlet.
  • Page 98 User Guide SIP-T20P IP Phone Why can I not receive calls? Check the SIP registration with your system administrator.  Check DND (Do Not Disturb) mode is turned off on your phone. Refer to Do Not  Disturb (DND) on page 53.
  • Page 99 Troubleshooting Click Reboot to reboot the IP phone. Note Any reboot of your phone may take a few minutes. How to reset your phone? Reset your phone when other Troubleshooting suggestions do not correct the problem. You need to note that all customized settings will be overwritten after resetting. So we recommend asking your system administrator for advice before resetting your phone.
  • Page 100 User Guide SIP-T20P IP Phone Click Stop to end recording. Click Export to open file download window, and then save the file to your local system. How to export System Log? We may need you to provide a System Log to help analyze your problem.
  • Page 101 Troubleshooting To enable SRTP via web user interface: Click on Account. Select the desired account from the pull-down list of Account. Click on Advanced>>. Mark the On radio box in the Voice Encryption (SRTP) field. Click Confirm to accept the change. Note The SRTP feature is not available on all servers.
  • Page 102 User Guide SIP-T20P IP Phone...

  • Page 103: Regulatory Notices

    Without prior written consent, no organization or individual is permitted to  make any change to the structure or the safety design of the device. Yealink is under no circumstance liable to consequences or legal issues caused by such changes.
  • Page 104 User Guide SIP-T20P IP Phone Environmental Requirements Place the device at a well-ventilated place. Do not expose the device under  direct sunlight. Keep the device dry and free of dusts.  Place the device on a stable and level platform.
  • Page 105 Regulatory Notices Cleaning Requirements Before cleaning the device, stop using it and disconnect it from the power  supply. Use a piece of soft, dry and anti-static cloth to clean the device.  Keep the power plug clean and dry. Using a dirty or wet power plug may ...
  • Page 106 User Guide SIP-T20P IP Phone...

  • Page 107: Appendix A - Time Zones

    Appendix A – Time Zones Time Zone Time Zone Name −11:00 Samoa −10:00 United States-Hawaii-Aleutian −10:00 United States-Alaska-Aleutian −09:00 United States-Alaska Time −08:00 Canada(Vancouver, Whitehorse) −08:00 Mexico(Tijuana, Mexicali) −08:00 United States-Pacific Time −07:00 Canada(Edmonton, Calgary) −07:00 Mexico(Mazatlan, Chihuahua) −07:00 United States-Mountain Time −07:00 United States-MST no DST −06:00...
  • Page 108 User Guide SIP-T20P IP Phone Time Zone Time Zone Name +01:00 Hungary(Budapest) +01:00 Italy(Rome) +01:00 Luxembourg(Luxembourg) +01:00 Macedonia(Skopje) +01:00 Netherlands(Amsterdam) +01:00 Namibia(Windhoek) +02:00 Estonia(Tallinn) +02:00 Finland(Helsinki) +02:00 Gaza Strip(Gaza) +02:00 Greece(Athens) +02:00 Israel(Tel Aviv) +02:00 Jordan(Amman) +02:00 Latvia(Riga) +02:00 Lebanon(Beirut)

  • Page 109: Call History Management

    Index General Settings About This Guide Getting Started Account Registration Administrator password Always Forward Hardware Components Instruction Anonymous Call Headset Activation/Deactivation Anonymous Call Rejection Headset Prior Answering Calls Hold Call Area Code Hot Line Attaching Stand Attended Transfer Audio Settings Audio Settings Icon Instructions Idle Screen...
  • Page 110 User Guide SIP-T20P IP Phone Placing Calls Power Adapter Programmable Keys Receiving RTP Stream Recording Calls Redialing Numbers Registration Replace Rule Ring Tones RTP Stream Safety Instructions Searching for Contacts Semi-attended Transfer Sending RTP Stream Service Agreement Shared Line Static Forwarding...

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