Yealink SIP-T28P User Manual
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Yealink SIP-T28P User Manual

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  • Page 2 Copyright © 2014 YEALINK NETWORK TECHNOLOGY CO., LTD. Copyright © 2014 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 Do not dispose of WEEE as unsorted municipal waste and have to collect such WEEE separately. We are striving to improve our documentation quality and we appreciate your feedback. Email your opinions and comments to DocsFeedback@yealink.com.
  • Page 4 Yealink SIP-T28P 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.

  • Page 5: About This Guide

    About This Guide Thank you for choosing the SIP-T28P 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. 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.
  • Page 6 User Guide SIP-T28P IP Phone The following sections are new: BLF List on page  Major updates have occurred to the following sections: LED Instructions on page  Ring Tones on page  Anonymous Call Rejection on page  Multicast Paging on page ...
  • Page 7 About This Guide LED Instructions on page  Ring Tones on page  Remote Phone Book on page  Anonymous Call on page  Troubleshooting on page  Major updates have occurred to the following sections: Phone Status on page ...
  • Page 8 User Guide SIP-T28P IP Phone DSS Keys on page  Do Not Disturb (DND) on page  Call Forward on page  Call Pickup on page  Busy Lamp Field (BLF) on page  viii...

  • Page 9: Table Of Contents

    Table of Contents About This Guide ..............v In This Guide ........................v Summary of Changes ...................... v Changes for Release 73, Guide Version 73.40 ............v Changes for Release 73, Guide Version 73.16 ............vi Changes for Release 72, Guide Version 72.25 ............vi Changes for Release 72, Guide Version 72.1 .............
  • Page 10 User Guide SIP-T28P IP Phone General Settings ......................19 Contrast ........................19 Backlight ........................20 Language ........................20 Time & Date ......................... 21 Administrator Password ..................... 23 Key as Send ........................ 24 Phone Lock ........................25 Audio Settings ........................ 28 Volume .........................

  • Page 11: Table Of Contents

    Table of Contents Local Conference ......................97 Network Conference ....................98 Call Park ........................100 Call Pickup ........................101 Anonymous Call ......................106 Anonymous Call Rejection ................... 107 Advanced Phone Features ............109 Busy Lamp Field (BLF)....................109 BLF List .......................... 111 Call Recording ......................

  • Page 13: 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-T28P IP phone are the LCD screen and the keypad.
  • Page 14 User Guide for the SIP-T28P IP Phone Hardware component instructions of the SIP-T28P IP phone are: Item Description Shows information about calls, messages, soft keys, time, date and other relevant data: • Call information — caller ID, call duration ①...
  • Page 15 Overview Icons appearing on the LCD screen are described in the following table: Icons Description Network is unavailable Registered successfully Register failed Registering Hands-free speakerphone mode Handset mode Headset mode Multi-lingual lowercase letters input mode Multi-lingual uppercase letters input mode Alphanumeric input mode Numeric input mode Multi-lingual uppercase and lowercase...
  • Page 16 User Guide for the SIP-T28P IP Phone Icons Description Call Mute Ringer volume is 0 Phone Lock Received Calls Placed Calls Missed Calls Recording box is full A call cannot be recorded Recording starts successfully Recording cannot be started Recording cannot be stopped Power Indicator LED (Hardware version must be 1.0.0.2 or higher)
  • Page 17 The above introduces the default LED status. The statuses of the power indicator LED and BLF key are configurable via web user interface. For more information, refer to Yealink_SIP-T2xP_IP_Phones_Administrator_Guide. Two ways to customize configurations of your SIP-T28P IP phone: The user interface on the IP phone. ...

  • Page 18: Phone User Interface

    User Guide for the SIP-T28P 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.

  • Page 19: Call Pickup

    Overview Options Phone User Interface Web User Interface -- Phone Lock √ --Ring Tones √ --Contact Management × --Directory × --Local Directory √ --Blacklist √ --Remote Phone Book × --Call History Management √ --Logo Customization × --DSS Keys √ --Account Registration √...

  • Page 20: Documentations On

    --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-T28P IP phone. Name Contents Where found Language Basic call features...

  • Page 21: 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-T28P IP phone package: SIP-T28P IP phone ...
  • Page 22 Ethernet Cable  Quick Start Guide  Check the list before installation. If you find anything missing, contact your system administrator. The following items are optional accessories for your SIP-T28P IP phone. You need to purchase them separately if required.
  • Page 23 Getting Started Power Adapter  Headset  If your phone is already installed, proceed to Phone Initialization on page 13. This section introduces how to install the phone: 1) Attach the stand 2) Connect the handset and optional headset 3) Connect the network and power Attach the stand...
  • Page 24 User Guide for the SIP-T28P IP Phone Connect the handset and optional headset Note A headset is not included in the packaging contents. Contact your system administrator for more information. Connect the network and power You have two options for power and network connections. Your system administrator will advise you which one to use.
  • Page 25 Getting Started Power over Ethernet With the included or a regular Ethernet cable, the SIP-T28P IP phone can be powered from a PoE-compliant switch or hub. 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.
  • Page 26 User Guide for the SIP-T28P IP Phone You can view phone status via phone user interface or web user interface. Available information of phone status includes: Network status (e.g., IPv4 status, IP mode and MAC address).  Phone status (e.g., device model, hardware version, firmware version, product ID, ...
  • Page 27 Getting Started The phone status is displayed on the first page of the web user interface. If your phone cannot contact a DHCP server for any reason, you need to configure network settings manually. The IP phone can support either or both IPv4 and IPv6 addresses.
  • Page 28 User Guide for the SIP-T28P IP Phone ->Network->WAN Port->IPv4->Static IP Client. Enter the desired values in the IPv4, Subnet Mask, Default Gateway, IPv4 Pri.DNS and IPv4 Sec.DNS fields respectively. Press the Save soft key to accept the change or the Back soft key to cancel.
  • Page 29 The SIP-T28P IP phone supports up to 6 accounts. If your phone is not registered, you may have to register it.
  • Page 30 User Guide for the SIP-T28P IP Phone...

  • Page 31: General Settings

    Customizing Your Phone You can customize your SIP-T28P IP phone by personally configuring certain settings, for example, contrast, time & date and ring tones. 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.

  • Page 32: Backlight

    User Guide for the SIP-T28P IP Phone Contrast is configurable via web user interface at the path Settings->Preference. You can configure the backlight to adjust the brightness of the LCD screen. Backlight active level is used to adjust to the backlight intensity of the LCD screen. Backlight time specifies the delay time to turn off the backlight when the IP phone is inactive.

  • Page 33: Time & Date

    Customizing Your Phone Press to select the desired language. Press the Save soft key to accept the change. Text displayed on the LCD screen will change to the selected language. To change the language for the web user interface: Click on Settings->Preference. Select the desired language from the pull-down list of Language.
  • Page 34 User Guide for the SIP-T28P IP Phone Press , 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 China(Beijing)". Enter the domain names or IP addresses in the NTP Server 1 and NTP Server 2 fields respectively.

  • Page 35: Administrator Password

    Customizing Your Phone Date Format field. 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”...
  • Page 36 User Guide for the SIP-T28P IP Phone To change the administrator password via phone user interface: Press Menu->Settings->Advanced Settings (default password: admin) ->Set Password. Enter the old password in the Current PWD field. Enter the new password in the New PWD field.

  • Page 37: Phone Lock

    Customizing Your Phone You can lock your phone temporarily when you are not using it. This feature helps to protect your phone from unauthorized use. Phone lock consists of the following: Menu Key: The Menu soft key and MESSAGE key are locked. You cannot access the menu of the phone until unlocked.
  • Page 38 User Guide for the SIP-T28P IP Phone Long press to lock the phone immediately when the phone is idle. The LCD screen prompts “Phone locked.” and displays the icon You can specify the interval (in seconds) to automatically lock the phone instead of long...
  • Page 39 Customizing Your Phone To change the phone unlock PIN via phone user interface: Press Menu->Settings->Basic Settings->Change PIN. Enter the old PIN in the Current PIN field. Enter the new PIN in the New PIN field. Re-enter the new password in the Confirm PIN field. Press the Save soft key to accept the change or the Back soft key to cancel.

  • Page 40: Volume

    User Guide for the SIP-T28P IP Phone To deactivate the phone lock via phone user interface: Press Menu->Settings->Advanced Settings (default password: admin) ->Phone Lock. Press , or the Switch soft key to select Disabled from the Phone Lock field. Press the Save soft key to accept the change.

  • Page 41: Ring Tones

    Customizing Your Phone To adjust the volume when the phone is during a call: Press to adjust the volume of currently engaged audio device (handset, speakerphone or headset). 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.
  • Page 42 User Guide for the SIP-T28P IP Phone Press to select the desired account and then press the Enter soft key. Press to select the desired ring tone. If Common is selected, this account will use the ring tone selected for the phone.

  • Page 43: Directory

    Customizing Your Phone Click Browse to locate a ring tone file (the file format must be *.wav) from your local system. Click Upload to upload the file. must b Note All custom ring tone files e no greater than 100KB. Custom ring tones for your phone can be uploaded via web user interface only.
  • Page 44 User Guide for the SIP-T28P IP Phone To remove a list from the Enabled column, select the desired list and then click To adjust the display order of list, select the desired list and then click The LCD screen will display the list(s) in the adjusted order.
  • Page 45 Customizing Your Phone The built-in phone directory can store the names and phone numbers of your contacts. You can store up to 1000 contacts and 5 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.
  • Page 46 User Guide for the SIP-T28P IP Phone To edit a group in the local directory: Press the Directory soft key. The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
  • Page 47 Customizing Your Phone To delete a group from the local directory: Press the Directory 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, press Menu->Directory->Local Directory to enter the local directory.

  • Page 48: Adding Contacts Manually

    User Guide for the SIP-T28P IP Phone Adding Contacts Manually To add a contact to the local directory manually: Press the Directory soft key. The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
  • Page 49 Customizing Your Phone Adding Contacts from Call History To add a contact to the local directory from call history: Press the History soft key. Press to select the desired entry. Press the Option soft key, and then select Add to Contacts from the prompt list. Enter the contact name.
  • Page 50 User Guide for the SIP-T28P IP Phone To edit a contact in the local directory: Press the Directory soft key. The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
  • Page 51 Customizing Your Phone To delete a contact from the local directory: Press the Directory 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, press Menu->Directory->Local Directory to enter the local directory.
  • Page 52 User Guide for the SIP-T28P IP Phone To place a call to a contact from the local directory: Press the Directory soft key. The IP phone enters the local directory directly as there is only Local Directory enabled in the directory by default.
  • Page 53 Customizing Your Phone To search for a contact in the local directory: Press the Directory 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, press Menu->Directory->Local Directory to enter the local directory.
  • Page 54 User Guide for the SIP-T28P IP Phone Repeat step 2 to add more lists to the Enabled column. To remove a list from the Enabled column, select the desired list and then click To adjust the display order of search results, select the desired list and then click The LCD screen will display search results in the adjusted order.
  • Page 55 Customizing Your Phone You can manage your phone’s local directory via phone or web user interface. But you can only import or export the contact list via web user interface. To import an XML contact list file via web user interface: Click on Directory->Local Directory.
  • Page 56 User Guide for the SIP-T28P IP Phone At least one item should be selected to be imported into the local directory. Click Import to complete importing the contact list. To export a contact list via web user interface: Click on Directory->Local Directory.
  • Page 57 Customizing Your Phone Enter the name and the office, mobile or other numbers in the corresponding fields. Press , or the Switch soft key 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 blacklist.
  • Page 58 User Guide for the SIP-T28P IP Phone The LCD screen prompts "Move selected to blacklist?". Press the Ok soft key to confirm the setting. For more operating instructions on editing, deleting, placing calls to and/or searching for contacts in the blacklist, refer to the operating instructions of...

  • Page 59: Remote Phone Book

    Customizing Your Phone To access your remote phone book via phone user interface: Press Menu->Directory->Remote Phone Book. If Remote Phone Book is added to the directory, press Directory->Remote Phone Book to enter the remote phone book. 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.
  • Page 60 The default value is 21600 seconds. Click Confirm to accept the change. The SIP-T28P IP phone maintains call history lists of Placed Calls, Received Calls, Missed Calls and Forwarded Calls. Call history lists support 100 entries in all. You can view call history, place a call, add a contact or delete an entry from the call history list.
  • Page 61 Customizing Your Phone Press , or the Switch soft key to select Disabled from the History Record field. Press the Save soft key to accept the change or the Back soft key to cancel. To view call history: Press the History soft key. The LCD screen displays All Calls list.
  • Page 62 User Guide for the SIP-T28P IP Phone Press to switch between All Calls, Placed Calls, Received Calls, Missed Calls and Forwarded Calls. Press to select the desired entry. Press the Delete soft key. To delete all entries from the call history list: Press the History soft key.

  • Page 63: Headset Use

    Customizing Your Phone Click Confirm to accept the change. Note The logo file format must be *.dob, contact your system administrator for more information. A custom logo can be uploaded via web user interface only. 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...
  • Page 64 User Guide for the SIP-T28P IP Phone Select Enabled from the pull-down list of Headset Prior. Click Confirm to accept the change. To use headset prior, you should activate the headset mode in advance: Physically connect the headset. Press to activate the headset mode.

  • Page 65: Dss Keys

    There are four types of DSS keys: Memory Keys, Line Keys, Programmable Keys and Ext Keys. The details will be introduced in the following. The use of line keys and memory keys are almost the same. The SIP-T28P IP phone supports 10 memory keys and 6 line keys.
  • Page 66 User Guide for the SIP-T28P IP Phone (Optional.) Enter the corresponding value in the Extension field. Press the Save soft key to accept the change or the Back soft key to cancel. Memory key is configurable via web user interface at the path DSSKey->Memory Key.
  • Page 67 Customizing Your Phone Type (Line) Dependencies: Account ID (the account this feature will be applied to) Label (key label displayed on the LCD screen) Usage: When receiving an incoming call, the DSS key LED flashes green: Press the DSS key to accept the incoming call. Press the DSS key to place a new call.
  • Page 68 User Guide for the SIP-T28P IP Phone their own group. Type (Key Event) Dependencies: Key Type (GPickup) Account ID (the account this feature will be applied to) Value (the group pickup feature code) Usage: Press the DSS key on your phone when a phone number in the group receives an incoming call.
  • Page 69 Customizing Your Phone Type (Key Event) Dependencies: Key Type (XML Group) Phone Book Name (the remote group you want to access if the remote phone book is configured) Usage: Press the DSS key to access the remote group specified in the Phone Book Name field.
  • Page 70 User Guide for the SIP-T28P IP Phone Forward You can use this key feature to forward an incoming call to someone else. For more information, refer to Call Forward on page 88. Type (Key Event) Dependencies: Key Type (Forward) Value (the number you want to forward to) Usage: Press the DSS key to forward an incoming call to the number specified in the Value field.
  • Page 71 Customizing Your Phone Press the DSS key again to retrieve the held call. You can use this key feature to activate or deactivate 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 84.
  • Page 72 User Guide for the SIP-T28P IP Phone parameters. Type (Key Event) Dependencies: Key Type (Zero Touch) Usage: Press the DSS key to access the zero touch screen. Press the OK soft key within a few seconds. Configure the network parameters in the corresponding fields.
  • Page 73 Customizing Your Phone To configure a line key via phone user interface: Press Menu->Features->DSS Keys->Line Keys. Select the desired line key, and then press the Enter soft key. Select the desired key type from Type field. (Optional.) Select the desired key event type from the Key Type field. (Optional.) Select the desired account from the Account ID field.
  • Page 74 Note Ext keys are configurable via web user interface only. You can register one or multiple accounts on the SIP-T28P IP phone. You can also configure each line key to associate with an account or configure multiple line keys to...
  • Page 75 Customizing Your Phone To register an account via phone user interface: Press Menu->Settings->Advanced Settings (default password: admin) ->Accounts. Select the desired account and then press the Enter soft key. Select Enabled from the Account Status field. Enter the desired values in the Label, Display Name, Register Name, User Name, Password and SIP Server1/2 fields respectively.
  • Page 76 User Guide for the SIP-T28P IP Phone To disable an account via phone user interface: Press Menu->Settings->Advanced Settings (default password: admin) ->Accounts. Select the desired account and then press the Enter soft key. Select Disabled from the Account Status field.

  • Page 77: Dial Plan

    Customizing Your Phone Dial plan is a string of characters that governs the way your SIP-T28P IP phone processes the inputs received from your phone keypad. The SIP-T28P IP phone supports the following dial plan features: Replace Rule  Dial-now ...
  • Page 78 User Guide for the SIP-T28P IP Phone Enter the string in the Prefix field. Enter the string in the Replace field. Enter the desired line ID in the Account field or leave it blank. Click Add to add the replace rule.
  • Page 79 Customizing Your Phone You can configure one or more dial-now rules (up to 100) on your phone. When the dialed out number matches the dial-now string, the number will be dialed out automatically. For example, a dial-now rule is configured as "2xx", any entered three-digit string beginning with 2 will then be dialed out automatically on the phone.
  • Page 80 User Guide for the SIP-T28P IP Phone Enter the time between 1 and 14 (seconds) in the Time-Out for Dial-Now Rule field. Click Confirm to accept the change. Note Delay time for dial-now rule is configurable via web user interface only.
  • Page 81 Customizing Your Phone For more information on the valid values for the Account field, refer to Replace Rule on page 65. Click Confirm to accept the change. Note The default values of minimum and maximum length are 1 and 15 respectively. Area code is configurable via web user interface only.
  • Page 82 User Guide for the SIP-T28P IP Phone For more information on the valid values for the Account field, refer to Replace Rule on page 65. Click Confirm to add the block out number. Note Block out number is configurable via web user interface only.

  • Page 83: Emergency Number

    Emergency number is configurable via web user interface only. You can enable live dialpad on the SIP-T28P IP phone, which enables the IP phone to automatically dial out a phone number without the pressing of the send key. You can also configure a delay, where the phone will dial out the phone number automatically after the designated period of time.

  • Page 84: Hotline

    User Guide for the SIP-T28P IP Phone Click Confirm to accept the change. Note Live dialpad is configurable via web user interface only. You can dial a hotline number immediately upon lifting the handset, pressing the Speakerphone key or pressing a line key. You can also configure a delay, where the phone will dial out the hotline number automatically after the designated period of time.

  • Page 85: Basic Call Features

    Basic Call Features The SIP-T28P 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 86 User Guide for the SIP-T28P 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 also search and dial a contact from call history, local directory or remote phone book.
  • Page 87 SIP-T28P IP phone can handle a maximum of 6 calls at one time. To place multiple calls: You can have more than one call on your SIP-T28P IP phone. To place a new call during an active call, do one of the following: Press the line key.
  • Page 88 User Guide for the SIP-T28P IP Phone Using the headset  Note You can reject incoming calls by pressing the X key, or the Reject soft key. You can also activate Do Not Disturb mode to reject all incoming calls without ringing on your phone.
  • Page 89 Basic Call Features Press the Answer soft key. The incoming call is answered and the original call is placed on hold. Press to access the new call. Press or the Answer soft key. The incoming call is answered and the original call is placed on hold. To end a call: Do one of the following: If you are using the handset, press the Cancel soft key or hang up the handset.
  • Page 90 User Guide for the SIP-T28P IP Phone You can view the placed calls list when the phone is in the pre-dialing screen. To do this, you should enable recent call in dialing in advance. To enable recent call in dialing via web user interface: Click on Directory->Setting.
  • Page 91 Basic Call Features You can use auto answer to automatically answer an incoming call on a line. Auto answer is configurable on a per-line basis. To configure auto answer via phone user interface: Press Menu->Settings->Advanced Settings (default password: admin) ->Accounts. Select the desired account and then press the Enter soft key.
  • Page 92 User Guide for the SIP-T28P IP Phone To configure auto redial via phone user interface: Press Menu->Features->Auto Redial. Press , or the Switch soft key to select Enabled from the Auto Redial field. Enter the desired time in the Redial Interval field.
  • Page 93 Basic Call Features Press the OK soft key to activate auto redial. The following prompt will appear on the LCD screen of the phone: Wait for the designated period of time or press the OK soft key to redial the phone number.
  • Page 94 User Guide for the SIP-T28P IP Phone To use call completion: When the called party is busy, the following prompt will appear on the LCD screen of the phone: Press the OK soft key, the phone returns to the idle screen and call completion is activated.
  • Page 95 Basic Call Features Press , or the Switch soft key to select ReCall from the Key Type field. 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. You can mute the microphone of the active audio device during an active call so that the other party cannot hear you.
  • Page 96 User Guide for the SIP-T28P IP Phone To place a call on hold: Press or the Hold soft key during a call. The LCD screen indicates that the call is on hold and the line key LED flashes green. Note The phone will beep softly every 30 seconds to remind you that you still have a call on hold.
  • Page 97 Basic Call Features Phone (default): DND is effective for the phone system.  Custom: DND can be configured for each or all accounts.  You can receive incoming calls from authorized numbers when DND is enabled. To configure the DND mode via web user interface: Click on Features->Forward &...
  • Page 98 User Guide for the SIP-T28P IP Phone Incoming calls will be rejected automatically and "n New Missed Call(s)" ("n" indicates the number of missed calls) will appear on the LCD screen. Note When DND and busy forward are enabled in phone mode, calls will be sent to the configured destination number.
  • Page 99 Basic Call Features Incoming calls on this line will be rejected automatically and "n New Missed Call(s)" ("n" indicates the number of missed calls) will prompt on the LCD screen. Note When DND and busy forward are enabled for a specific account, calls from the specific account will be sent to the configured destination number.
  • Page 100 User Guide for the SIP-T28P IP Phone Select Enabled from the pull-down list of DND Emergency. Enter the numbers in the DND Authorized Numbers field. For multiple numbers, enter a comma between every two numbers. Click Confirm to accept the change.
  • Page 101 Basic Call Features of time. You can enable/disable call forward for the phone system, or you can customize call forward for each or all accounts. Two call forward modes: Phone (default): Call forward is effective for the phone system.  Custom: Call forward can be configured for each or all accounts.
  • Page 102 User Guide for the SIP-T28P IP Phone Always forward on code/ off code is used to activate/deactivate the server-side always forward feature when the user enables/ disables always forward feature on the phone. b.) If you select Busy Forward: 1) Press , or the Switch soft key to select Enabled from the Busy Forward field.
  • Page 103 Basic Call Features server-side always forward feature when the user enables/ disables no answer forward feature on the phone. Press the Save soft key to accept the change. icon on the idle screen indicates that call forward is enabled. To enable call forward in custom mode: Press Menu->Features->Call Forward.
  • Page 104 User Guide for the SIP-T28P IP Phone 2) Press the All Lines soft key. The LCD screen prompts “Copy to all lines?”. 3) Press the OK soft key to accept the change or the Cancel soft key to cancel. b.) If you select Busy Forward, you can enable it for a specific account.
  • Page 105 Basic Call Features The LCD screen prompts “Copy to all lines?”. 3) Press the OK soft key to accept the change or the Cancel soft key to cancel. c.) If you select No Answer Forward, you can enable it for a specific account. 1) Press , or the Switch soft key to select Enabled from the No Answer Forward field.
  • Page 106 User Guide for the SIP-T28P IP Phone 2) Press the All Lines soft key. The LCD screen prompts “Copy to all lines?”. 3) Press the OK soft key to accept the change or the Cancel soft key to cancel. Press the Save soft key to accept the change or the Back soft key to cancel.
  • Page 107 Basic Call Features Press or the Switch soft key to select Disabled to disable call forward. Press the Save soft key to accept the change. Dynamic Forwarding To forward an incoming call to another party: When the phone is ringing, press the Forward soft key. Enter the number you want to forward the incoming call to.
  • Page 108 User Guide for the SIP-T28P IP Phone Enter the number you want to transfer the call to. Press the Directory soft key, and then select Local Directory. Select the desired group, and search for the contact (Directory should be configured in advance.
  • Page 109 Network conference is not available on all servers. For more information, contact your system administrator. The SIP-T28P IP phone supports up to 3 parties (including yourself) in a conference call. This is the default method of conference called Local Conference.

  • Page 110: Network Conference

    Split soft key to split the conference call into two individual calls on hold. To drop the conference call, press the Cancel soft key. You can use network conference on the SIP-T28P IP phone to conduct a conference with multiple participants.
  • Page 111 Basic Call Features Click on Advanced. Select Network Conference from the pull-down list of Conference Type. Enter the conference URI (e.g., conference@example.com) in the Conference URI field. Click Confirm to accept the change. Note Network conference is configurable via web user interface only. To set up a network conference call: Place a call to the first party.

  • Page 112: Call Park

    User Guide for the SIP-T28P IP Phone You can use call park to place a call on hold, and then retrieve the call from another phone in the system (for example, a phone in another office or conference room). You can park an active call by pressing the call park key on the phone.
  • Page 113 You can use call pickup to answer someone else’s incoming call on your phone. The SIP-T28P IP phone supports directed call pickup and group call pickup. Directed call pickup is used for picking up a call that is ringing at a target phone number. Group call pickup is used for picking up a call that is ringing at any phone number in a certain group.
  • Page 114 User Guide for the SIP-T28P IP Phone Select Enabled from the pull-down list of Directed Call Pickup. Click Confirm to accept the change. To configure the directed call pickup code on a global basis via web user interface: Click on Features->Call Pickup.
  • Page 115 Basic Call Features Enter the directed call pickup code in the Directed Call Pickup Code field. Click Confirm to accept the change. To pick up a call directly: Pick up the handset and press the more soft key. The DPickup soft key appears on the LCD screen. Press the DPickup soft key on your phone when the target phone receives an incoming call.

  • Page 116: Group Call Pickup

    User Guide for the SIP-T28P IP Phone Group Call Pickup To enable group call pickup via web user interface: Click on Features->Call Pickup. Select Enabled from the pull-down list of Group Call Pickup. Click Confirm to accept the change. To configure the group call pickup code on a global basis via web user interface: Click on Features->Call Pickup.
  • Page 117 Basic Call Features To configure the group call pickup code on a per-line basis via web user interface: Click on Account. Select the desired account from the pull-down list of Account. Click on Advanced. Enter the group call pickup code in the Group Call Pickup Code field. Click Confirm to accept the change.

  • Page 118: Anonymous Call On

    User Guide for the SIP-T28P IP Phone You can use anonymous call to block your identify and phone number from appearing to the called party when you call someone. For example, you want to call to consult some of the services, but don’t want to be harassed. Anonymous call is configurable on a per-line basis.

  • Page 119: Anonymous Call Rejection On

    Basic Call Features To place an anonymous call: Using the specific line on the phone to place a call to phone B. The LCD screen of phone B prompts an incoming call from anonymity. You can use anonymous call rejection to reject incoming calls from anonymous callers. Anonymous call rejection automatically rejects incoming calls from callers who deliberately block their identities and numbers from being displayed.
  • Page 120 User Guide for the SIP-T28P IP Phone The phone will send the configured on code or off code depending on your selection when you enable or disable local anonymous rejection feature on the phone. Press the Save soft key to accept the change or the Back soft key to cancel.

  • Page 121: Busy Lamp Field (Blf)

    Advanced Phone Features This chapter provides operating instructions for the advanced features of the SIP-T28P IP phone. Topics include: Busy Lamp Field (BLF)  BLF List  Call Recording  Hot Desking  Intercom  Multicast Paging  Music on Hold ...
  • Page 122 User Guide for the SIP-T28P IP Phone (Optional.) Enter the pickup code in the Extension field. Press the Save soft key to accept the change or the Back soft key to cancel. BLF key is configurable via web user interface at the path DSSKey.
  • Page 123 Advanced Phone Features When the monitored line receives an incoming call, the following occurs on your phone: The phone plays a warning tone (if enabled).  The BLF key LED flashes.  The caller ID appears on the LCD screen (if enabled). ...
  • Page 124 User Guide for the SIP-T28P IP Phone configured, the phone will place a call to the monitored user instead of picking up the incoming call of the monitored user when you press the BLF List key. When there is a conversation on the monitored user, press the BLF list key to barge ...
  • Page 125 For more information about pickup Code, refer to Call Pickup on page 101. You can record calls by pressing a record key on the phone. The SIP-T28P IP phone supports record and URL record. Two ways of call recording: Record: The phone sends SIP INFO message containing a specific header “Record: ...
  • Page 126 User Guide for the SIP-T28P IP Phone Press the Save soft key to accept the change or the Back soft key to cancel. To configure a URL record key via phone user interface: Press Menu->Features->DSS Keys->Memory Keys (or Line Keys).
  • Page 127 You can use hot desking on the SIP-T28P IP phone to log out of existing accounts and then log into a new account, that is, many users can share the phone resource at different times.
  • Page 128 User Guide for the SIP-T28P IP Phone Press , or the Switch soft key to select Hot Desking from the Key Type field. Press the Save soft key to accept the change or the Back soft key to cancel. Hot desking key is configurable via web user interface at the path DSSKey.
  • Page 129 Press the intercom key again or the Cancel soft key to end the intercom call. The SIP-T28P IP phone supports automatically to answer an incoming intercom call by default. The phone automatically plays a warning tone when it receives an incoming...
  • Page 130 User Guide for the SIP-T28P IP Phone automatically answers an incoming intercom call. You can also enable the phone to automatically answer an incoming intercom call while there is already an active call on the phone. The active call is then placed on hold.
  • Page 131 Advanced Phone Features Intercom Mute You can mute or un-mute the phone’s microphone for intercom calls automatically. If Intercom Mute is enabled, the microphone will be muted for intercom calls. If Intercom Mute is disabled, the microphone will work for intercom calls. Intercom Mute is disabled by default.
  • Page 132 User Guide for the SIP-T28P IP Phone The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255. Press the Save soft key to accept the change or the Back soft key to cancel. Multicast paging key is configurable via web user interface at the path DSSKey.
  • Page 133 Advanced Phone Features Press the Option soft key. Press the Edit soft key. Enter the multicast IP address and port number (e.g., 224.5.6.20:10008) in the Address field. The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255. Enter the group name in the Label field. Press the Save soft key to accept the change.
  • Page 134 User Guide for the SIP-T28P IP Phone The default codec is G722. Click Confirm to accept the change. Note If G722 codec is used for multicast paging, the LCD screen will display the icon to indicate that it is providing high definition voice.
  • Page 135 Advanced Phone Features Press the Cancel soft key to cancel the multicast RTP session. Note Multicast RTP is one way only from the sender to the multicast address(es) (receiver). For outgoing RTP multicasts, all other existing calls on the phone will be placed on hold. To send RTP stream via a paging key list: Press the paging list key when the phone is idle.
  • Page 136 User Guide for the SIP-T28P IP Phone The paging priority active parameter decides how the phone handles incoming multicast paging calls when there is already a multicast paging call on the phone. If enabled, the phone will ignore incoming multicast paging calls with lower priorities, otherwise, the phone will answer incoming multicast paging calls automatically and place the previous multicast paging call on hold.
  • Page 137 Advanced Phone Features a SIP URI pointing to a Music on Hold Server account. When a call is placed on hold, the phone will send a SIP INVITE message to the Music on Hold Server account. The Music on Hold Server account automatically answers the SIP INVITE messages and immediately plays audio from some source located anywhere (LAN, Internet) to the held party.

  • Page 138: Messages

    User Guide for the SIP-T28P IP Phone You can send and receive text messages using the SIP-T28P IP phone. New text messages can be indicated both acoustically and visually. When receiving a new text message, the phone will play a warning tone, and the LCD screen will prompt receiving new text messages with the number of waiting messages (example: 2 New Text Message(s)) and a flashing icon.
  • Page 139 Advanced Phone Features Select the desired message and press the View soft key. Note If the phone prompts receiving new text messages, you can also press the View soft key to read the new messages directly. To send a text message: Press Menu->Messages->Text Message->New Message.
  • Page 140 User Guide for the SIP-T28P IP Phone Check the From and To fields, and then press the Send soft key. To delete a text message: Press Menu->Messages->Text Message->Inbox (Sentbox, Outbox or Draftbox). Select the desired message and then press the Delete soft key.
  • Page 141 Advanced Phone Features You can leave voice mails for someone else using the SIP-T28P IP phone. You can also listen to voice mails that are stored in a voice mailbox. When receiving a new voice mail, the phone will play a warning tone and the MESSAGE key LED will illuminate. The LCD screen will prompt that the phone receives a new message and display a flashing icon.
  • Page 142 The MWI service is unsolicited for some servers, so the SIP-T28P IP phone only handles the MWI messages sent from the server. But for other servers, the MWI service is solicited, so the SIP-T28P IP phone must enable subscription for MWI.

  • Page 143: Voice Mail

    Advanced Phone Features The MWI Subscription parameters you need to know: Options Description Subscribe for MWI Enable or disable a subscription for MWI service. Period of MWI subscription. The IP phone sends a MWI Subscription Period refresh SUBSCRIBE request before initial SUBSCRIBE expiration.
  • Page 144 User Guide for the SIP-T28P IP Phone Click Confirm to accept the change. To enable Subscribe MWI to Voice Mail via web user interface: Click on Account. Select the desired account from the pull-down list of Account. Click on Advanced.

  • Page 145: Troubleshooting

    Troubleshooting This chapter provides general troubleshooting information to help to solve the problems you might encounter when using your SIP-T28P IP phone. If you require additional information or assistance with your new phone, contact your system administrator. Why is the LCD screen blank? Ensure that the phone is properly plugged into a functional AC outlet.

  • Page 146: Do Not Disturb (Dnd)

    User Guide for the SIP-T28P IP Phone How to obtain the MAC address of a phone when the phone is not powered on? Three ways to obtain the MAC address of a phone: You can ask your supplier for the shipping information sheet which includes MAC ...
  • Page 147 Troubleshooting Check that the headset volume is adjusted to an appropriate level. Refer to Volume  on page 28. What will happen if I connect both PoE cable and power adapter? Which has the priority? The phones manufactured before February 2010 use the power adapter preferentially, otherwise the phones use PoE preferentially.
  • Page 148 User Guide for the SIP-T28P IP Phone Why can’t I send a SMS to any other phone? depends on support from a SIP server. Contact your system administrator for more information. How to change the user password? To change the user password via web user interface: Click on Security->Password.
  • Page 149 Troubleshooting Select the desired value from the pull-down list of RTP Encryption (SRTP). Click Confirm to accept the change. Note SRTP is not available on all servers. Contact your system administrator for more information. How to reboot the phone? To reboot the phone via web user interface: Click on Settings->Upgrade.
  • Page 150 User Guide for the SIP-T28P IP Phone Click Reboot to reboot the phone. Note Any reboot of the phone may take a few minutes. How to export PCAP trace? We may need you to provide a PCAP trace to help analyze your problem.
  • Page 151 Troubleshooting Click Export to open file download window, and then save the file to your local system. You can also export the system log to a syslog server. Contact your system administrator for more information. Note It is recommended you reset the system log level to 3 after you have the syslog file provided.
  • Page 152 User Guide for the SIP-T28P IP Phone In the Export or Import Configuration block, click Export to open file download window, and then save the file to your local system. To import the phone configurations via web user interface: Click on Settings->Configuration.
  • Page 153 Troubleshooting The web user interface prompts “Firmware of the SIP Phone will be updated. It will take 5 minutes to complete. Please don't power off!”. Click OK to confirm upgrading. How to reset the phone? Reset the phone to factory configurations after you have tried all troubleshooting suggestions but do not solve the problem.
  • Page 154 User Guide for the SIP-T28P IP Phone The phone will be reset to factory settings sucessfully after startup. Note Reset of your phone may take a few minutes. Do not power off until the phone has started up successfully.

  • Page 155: 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 circumstances liable to consequences or legal issues caused by such changes.
  • Page 156 User Guide for the SIP-T28P IP Phone Keep the device dry and free of dust.  Place the device on a stable and level platform.  Please do not place heavy objects on the device in case of damage and ...
  • Page 157 Regulatory Notices Keep the power plug clean and dry. Using a dirty or wet power plug may  lead to electric shock or other perils.
  • Page 158 User Guide for the SIP-T28P IP Phone...

  • Page 159: Appendix A-Time Zones

    Appendix A-Time Zones Time Zone Time Zone Name −11:00 Samoa −10:00 United States-Hawaii-Aleutian −09:30 French Polynesia −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 160 User Guide for the SIP-T28P IP Phone Time Zone Time Zone Name +01:00 France(Paris) +01:00 Germany(Berlin) +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)
  • Page 161 Appendix A-Time Zones Time Zone Time Zone Name +10:00 Russia(Vladivostok) +10:30 Australia(Lord Howe Islands) +11:00 New Caledonia(Noumea) +11:00 Russia(Srednekolymsk Time) +11:30 Norfolk Island +12:00 New Zealand(Wellington, Auckland) +12:00 Russia(Kamchatka Time) +12:45 New Zealand(Chatham Islands) +13:00 Tonga(Nukualofa) +13:30 Chatham Islands +14:00 Kiribati...
  • Page 162 User Guide for the SIP-T28P IP Phone...

  • Page 163: Index

    Index Directory Do Not Disturb (DND) About This Guide Documentations Account Management DSS Keys Account Registration Dual Headset Adding Contacts Adding Groups Administrator password Anonymous Call Editing Contacts Anonymous Call Rejection Editing Groups Answering Calls Emergency Number Area Code Ending Calls Attaching Stand Audio Settings Auto Answer...
  • Page 164 User Guide for the SIP-T28P IP Phone Messages Voice Mail Message Waiting Indicator Volume Multicast Paging Multiple Line Keys per Account Music on Hold Warranty Web User Interface WEEE Warning Network Conference Network Connection No answer Forward Outgoing Intercom Calls...

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