Yealink SIP-T48G User Manual
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Yealink SIP-T48G User Manual

Yealink SIP-T48G User Manual

Microsoft lync edition
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  • Page 2 Copyright © 2015 YEALINK NETWORK TECHNOLOGY CO., LTD. Copyright © 2015 Yealink Network Technology CO., LTD. All rights reserved. No parts of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, photocopying, recording, or otherwise, for any purpose, without the express written permission of Yealink Network Technology CO., LTD.
  • 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-T48G IP phone firmware contains third-party software under the GNU General Public License (GPL). Yealink uses software under the specific terms of the GPL. Please refer to the GPL for the exact terms and conditions of the license. The original GPL license, source code of components licensed under GPL and used in Yealink products can be downloaded online: http://www.yealink.com/GPLOpenSource.aspx?BaseInfoCateId=293&NewsCateId=293&CateId=293.

  • Page 5: About This Guide

    Yealink SIP-T48G IP phone, and your network is correctly configured. Also be sure to read the Packaging Contents and Regulatory Notices sections in this guide before you set up and use the Yealink SIP-T48G IP phone.
  • Page 6 User Guide for the SIP-T48G IP Phone Static Forwarding on Lync Client on page  Response Groups on page  Inbound Private Line on page  Call Park on page  Phone Lock on page  Account Lock on page ...

  • Page 7: Table Of Contents

    Table of Contents About This Guide ..............v In This Guide ......................... v Summary of Changes ......................v Changes for Release 7, Guide Version 7.50 ..............v Changes for Release 7, Guide Version 7.35 ..............v Table of Contents ..............vii Overview ..................
  • Page 8 User Guide for the SIP-T48G IP Phone Customizing Your Phone ............33 General Settings ........................ 33 Language ......................... 33 Time & Date ........................34 Backlight .......................... 37 Administrator Password ....................38 Key as Send ........................39 Phone Lock ........................40 Audio Settings ........................

  • Page 9: Table Of Contents

    Voice Mail ........................... 90 Better Together over Ethernet ..........93 Getting Started with Better Together over Ethernet ............93 Installing the Yealink Better Together over Ethernet Connector ........93 Enabling Better Together over Ethernet ................ 100 Using Better Together over Ethernet ................104 Troubleshooting ..............107...
  • Page 10 User Guide for the SIP-T48G IP Phone...

  • 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-T48G IP phone are the touch screen and the keypad.
  • Page 12 User Guide for the SIP-T48G IP Phone Hardware component instructions of the SIP-T48G IP phone are: Item Description ① Power Indicator LED Indicates phone power and some feature statuses. The screen is touch-sensitive. Tap to select and highlight screen items.
  • Page 13 Overview Icons appearing on the touch screen are described in the following table: Icons Description Call Mute Call Forward Answer a call Call Hold Call resume Add a new call Call transfer Call Park Dial/Call Reject or cancel a call Received Calls Placed Calls Missed Calls...
  • Page 14 Note indicator LED is configurable via web user interface. For more information, refer to Yealink_SIP-T4X_IP_Phone_Family_Administrator_Guide_V72_2 Two ways to customize configurations of your SIP-T48G IP phone: The user interface on the IP phone.  The user interface in a web browser on your PC.
  • Page 15 (e.g., http://192.168.0.10 or 192.168.0.10) in the address bar of web browser on your PC. The default administrator user name and password are both “admin” (case-sensitive). The following table shows documentations available for the SIP-T48G IP phone. Name Contents Where found...
  • Page 16 User Guide for the SIP-T48G IP Phone...

  • Page 17: Phone Installation

    Getting Started This chapter provides the following basic installation instructions and information for obtaining the best performance with the SIP-T48G IP phone. Topics include: Packaging Contents  Phone Installation  Phone Initialization  Sign-in  Account Lock  Touch Screen Display ...
  • Page 18 Quick Start Guide  Check the list before installation. If you find anything missing, contact your system administrator. The following item is optional accessory for your SIP-T48G IP phone. You need to purchase it separately if required. Wall Mount Bracket ...
  • Page 19 The top two slots are plugged up by silica gels. You need to pull out the silica gels before attaching the wall mount bracket. For more information on how to mount your phone to a wall, refer to Yealink Wall Mount Quick Installation Guide for T4X IP Phones...

  • Page 20: Power Over Ethernet

    Connect the included or a standard Ethernet cable between the Internet port on the phone and the one on the wall or the switch/hub device port. Power over Ethernet With the included or a regular Ethernet cable, the SIP-T48G IP phone can be powered from a PoE-compliant switch or hub.
  • Page 21 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 phone to the power adapter. Make sure the switch/hub is PoE-compliant.
  • Page 22 User Guide for the SIP-T48G IP Phone After the initialization, the sign-in screen appears. The screen will be shown as below: You can tap to enter the menu screen before signing in to Lync server. The menu screen is shown as below: From the menu screen, you can view phone status, configure call features or phone settings.
  • Page 23 Getting Started To sign in to Lync server via phone user interface: Do one of the following： If you select Pin Sign in method, do the following: Tap the Extension field. The on-screen keyboard appears. You can then enter your phone number or extension (e.g., 2216) by the phone keypad or on-screen keyboard.

  • Page 24: Phone Lock On

    User Guide for the SIP-T48G IP Phone Tap the Sign in soft key. To sign in to Lync server with user credentials via web user interface: Click on Account->Register. Enter your Lync user’s sign-in name (e.g., 2216@yealinkuc.com) in the Login Address field.
  • Page 25 Getting Started To configure the account lock feature via phone user interface: ->Advanced (default password: admin) ->Account Lock. Mark the On radio box of Account Lock. to accept the change or tap to cancel. Account lock is configurable via web user interface at the path Account->Basic-> Account Lock.
  • Page 26 User Guide for the SIP-T48G IP Phone Tap the Sign in soft key. The screen will be shown as below: Enter the administrator password. Tap the OK soft key. If phone lock feature is enabled, you will enter the unlock PIN settings screen.
  • Page 27 Getting Started Name Description Shows the display name, avatar, status icon, Screen Title Area time and date and Displays the Favorites, History, Contacts or Main Window Menu Screen content. to enter the Favorites screen and view favorite contacts. to enter the History screen and view Shortcut Keys call history.
  • Page 28 User Guide for the SIP-T48G IP Phone Configuration Screen Display Name Description Displays the title of the access menu screen Screen Title Area and the icon. Displays menu items. You can tap the desired menu item to enter Menu Tree Area the corresponding feature configuration screen.
  • Page 29 Getting Started The main window displays the avatar, display name and status icon of the favorite contacts. When the number of favorite contacts is more than 8, the page switch keys appear on the right side of the main window. You can tap or press to turn pages.
  • Page 30 User Guide for the SIP-T48G IP Phone Tap Missed to view missed calls. The touch screen displays the contact avatar, display name, status icon and time information of the missed calls. Tap Placed to view placed calls. The touch screen displays the contact avatar, display name, status icon and time information of the placed calls.
  • Page 31 Getting Started The touch screen displays the contact avatar, display name, status icon and time information of the received calls. to enter the Contacts screen. The main window displays the groups and the number of members, when the number of groups is more than 12, the page switch keys appear on the right side of the main window.
  • Page 32 User Guide for the SIP-T48G IP Phone When the phone receives voice mails, a number (indicating the number of voice messages you haven't retrieved) will appear on the Message menu icon. When all new voice mails are retrieved, the number will disappear.
  • Page 33 Getting Started If you want to Then you can scroll values one by one. From the pull-down list, tap the value or scroll Select a value for a field. to the value and then press You can enter data and edit fields using the phone keypad or using the on-screen keyboard.
  • Page 34 User Guide for the SIP-T48G IP Phone If you want to Then you can quickly. Note: When you are in the uppercase (ABC soft key) or lowercase (abc soft key) input mode, is not available. Press the keypad key , or long...
  • Page 35 Getting Started Before using the on-screen keyboard to enter data, you need to know the function of the keys on the on-screen keyboard: Description Item 26 English letters Enter letters Delete key Delete the entered characters Dial key Place a call Switch between the uppercase input mode Shift key and the lowercase input mode...
  • Page 36 User Guide for the SIP-T48G IP Phone When you tap &123, the on-screen keyboard is shown as below: Item Description Special characters Enter special characters Numbers Enter numbers Delete key Delete the entered characters Dial key Place a call The on-screen...
  • Page 37 Getting Started You can tap to hide the on-screen keyboard, and then tap to reopen the on-screen keyboard. You can view phone status via phone user interface or web user interface. Available information of phone status includes: General information (IP address, MAC address and firmware version) ...
  • Page 38 User Guide for the SIP-T48G IP Phone To view the phone status via phone user interface: Press , or tap ->Status. Tap the desired item to view the specific information. To view the phone status via web user interface: Open the web browser on your computer.
  • Page 39 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 40 User Guide for the SIP-T48G IP Phone Make sure that the IP address mode is configured as IPv4 or IPv4 & IPv6. Select Static IP from the pull-down list of Type. Enter the desired values in the IP, Subnet Mask, Gateway fields respectively.
  • Page 41 Getting Started To configure PPPoE via phone user interface: ->Advanced (default password: admin) ->Network->WAN Port->IPv4. Tap the gray box of the Type field. Tap PPPoE from the pull-down list. Enter the PPPoE user name and password in the corresponding fields. to accept the change or tap to cancel.
  • Page 42 User Guide for the SIP-T48G IP Phone...

  • Page 43: Customizing Your Phone

    Customizing Your Phone You can customize your SIP-T48G IP phone by personally configuring certain settings, for example, time & date and ring tones. This chapter provides basic operating instructions for customizing your phone. Topics include: General Settings  Audio Settings ...

  • Page 44: Time & Date

    User Guide for the SIP-T48G IP Phone Tap the desired language. to accept the change. Text displayed on the phone user interface will change to the selected language. To change the language for the web user interface: Click on Settings->Preference.
  • Page 45 Customizing Your Phone To configure the SNTP settings via phone user interface: ->Basic-> Date & Time ->General. Select SNTP from the pull-down list of Type. Tap the time zone that applies to your area from the pull-down list of Time Zone. The default time zone is "GMT+8 China(Beijing)".
  • Page 46 User Guide for the SIP-T48G IP Phone Enter the specific date and time in the corresponding fields. to accept the change. The time and date displayed on the touch screen will change accordingly. There are 7 available date formats. For example, for the date format “WWW DD MMM”, “WWW”...

  • Page 47: Backlight

    Customizing Your Phone Select the desired time format (12 Hour or 24 Hour) from the pull-down list of Time Format. to accept the change or tap to cancel. Time and date are configurable via web user interface at the path Settings->Time & Date.

  • Page 48: Administrator Password

    User Guide for the SIP-T48G IP Phone Select the desired time from the pull-down list of Backlight Time. to accept the change or tap to cancel. Backlight is configurable via web user interface at the path Settings->Preference. The Advanced option is only accessible to the administrator. The default administrator password is “admin”.
  • Page 49 Customizing Your Phone Security->Password. You can set the "#" or "*" to perform as a send key while dialing. To configure key as send via phone user interface: ->Call Features->Key As send. Tap the gray box of the Key As Send field. Tap Key # or Key * or Disabled from the pull-down list of Key As Send to disable this feature.

  • Page 50: Phone Lock

    User Guide for the SIP-T48G IP 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 feature is enabled by default, you should set the unlock PIN before login to the phone To set unlock PIN: Enter the unlock PIN (length must be between 6 and 15) in the New PIN field.
  • Page 51 Customizing Your Phone When the locked phone is idle: Numeric keypad, Volume key, Headset Key, Navigation keys, OK Keys and Speakerphone keys are available and other keys on the phone are locked. When the locked phone receives incoming call: You can answer or reject the incoming calls only. When the locked phone engages in a call: You can place the call on hold, end the call or place a new call only.
  • Page 52 User Guide for the SIP-T48G IP Phone To unlock the keypad via phone user interface: When the phone is locked, enter the PIN in the Unlock field. Tap Unlock or press Note You can also unlock the keypad by administrator password.

  • Page 53: Volume

    Customizing Your Phone You can press the volume key to adjust the ringer volume when the phone is idle. You can also press the volume key to adjust the receiver volume of currently engaged audio device (handset, speakerphone or headset) when the phone is in use. To adjust the volume when the phone is idle: Press to adjust the ringer volume.

  • Page 54: Ring Tones

    User Guide for the SIP-T48G IP Phone Press to adjust the speaker volume when using the hands-free speakerphone mode: Press to adjust the headset volume when using the headset: Ring tones are used to indicate incoming calls and distinguish your phone from your neighbor’s.
  • Page 55 Customizing Your Phone Tap the desired ring tone. to accept the change or tap to cancel. To select a ring tone for the Phone via web user interface: Click on Account->Basic. Select the desired ring tone from the pull-down list of Ring Type. If Common is selected, the phone will use the same ring tone that is selected in path Settings->Preference.

  • Page 56: Icon Instructions On

    User Guide for the SIP-T48G IP Phone In the Upload Ringtone field, click Browse to locate a ring tone file (the file format must be *.wav) from your local system. Click Upload to upload the file. Note All custom ring tone files must be within 100KB. Uploading custom ring tones for your phone is configurable via web user interface only.
  • Page 57 Customizing Your Phone The detailed information (e.g., display name, status, address or email) of the contact appears on the touch screen. Tap the grey area on the right side or press to return to the pervious screen. You can search a contact in dialing screen, History screen, Contact screen, Call transfer screen, etc.
  • Page 58 The contacts that meet search criteria will appear on the touch screen. You can dial from the result list. You can enable the dial search delay feature on the SIP-T48G IP phone, which enables the IP phone to search for contacts after the designated time when in the dialing screen.
  • Page 59 Searching for Contacts on page 47. The SIP-T48G IP phone contains call history lists of Missed, Placed and Received. Each list supports up to 100 entries. You can view the call history or place a call from the call history list.

  • Page 60: Changing Presence

    User Guide for the SIP-T48G IP Phone To view the call history: The touch screen displays all call records. or press to turn pages. You can tap Missed, Placed or Received to view entries in each call list directly. Tap the desired entry.
  • Page 61 Customizing Your Phone The following table lists the status that you can change on the phone: Icon Status Description Available The contact is online and available to contact. The contact is available but engaged in another activity. Those activities include: Busy In a call ...
  • Page 62 User Guide for the SIP-T48G IP Phone To change your presence: Tap your avatar at the top-right corner of the touch screen. Tap the desired status from the pull-down list. The presence status will appear on the touch screen, and the presence status is synchronized to the Microsoft Lync server.

  • Page 63: Always Online

    Customizing Your Phone To enable the always online via phone user interface: -> Basic ->Always Online. Mark the On radio box of Always Online. to accept the change. Always online is configurable via web user interface at the path Account->Basic-> Always On Line.

  • Page 64: Location Notification

    User Guide for the SIP-T48G IP Phone Select desired value from the pull-down list of E911 Location Tip. Click Confirm to accept the change. Note E911 location tip feature is configurable via web user interface only. Location notification depends on the configuration on Lync server. It is based on the...
  • Page 65 Customizing Your Phone When the parameter Location Required is set to Yes on the Lync server while the E911 Location Tip feature is disabled, the Status menu will not display icon. When the parameter Location Required is set to Disclaimer on the Lync server, the touch screen will prompt the disclaimer configured on the Lync server: You can do one of the following: –...
  • Page 66 Location is configurable via web user interface at the path Settings->Location. Note SIP-T48G IP phone has 24 country locations for you to choose from. The country names are displayed in alphabetical order. To view the location information via phone user interface: Do one of the following: ->Status->Location.

  • Page 67: Emergency Call

    Customizing Your Phone even if the phone is locked, and keypad is available during an emergency call. With or without the location information will not affect you to dial an emergency call. When you dial an Emergency Dial String number or Emergency Dial String Mask number (e.g., 910086), the touch screen is shown as below: You can cancel or hold the emergency call only.
  • Page 68 User Guide for the SIP-T48G IP Phone Syntax Description "12x" would match "121", "122", "123", "12a", etc. Numeric ranges are allowed within the brackets: Digit “-” Digit. Example: “[5-7]” would match the number”5”, ”6”or ”7”. The square brackets "[]" can be used as a placeholder for a single character which matches any of a set of characters.

  • Page 69: Live Dialpad

    Delay time for dial-now rule is configurable via web user interface only. You can enable live dialpad on the SIP-T48G IP phone, which enables the IP phone to automatically dial out any entered phone numbers without pressing any other key. You can also configure a delay, where the phone will dial out the entered phone number automatically after the specified period of time.
  • Page 70 User Guide for the SIP-T48G IP Phone The default delay time is 8. Click Confirm to accept the change. Note Live dialpad is configurable via web user interface only.

  • Page 71: Placing Calls

    Basic Call Features The SIP-T48G 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 72 User Guide for the SIP-T48G IP Phone by pressing the Speakerphone key, the HEADSET key, or picking up the handset. The call duration, the talking mode and the avatar of the contact are visible on the touch screen. In the figure below, the call to ” Merry” has lasted 17 seconds.
  • Page 73 Basic Call Features Enter the desired number using the phone keypad or the on-screen keyboard. Press or tap on the on-screen keyboard. You can also enter the first few continuous characters of the contact name or the contact number, tap the desired entry from the result list, then tap press Press Enter the desired number using the phone keypad or the on-screen keyboard.

  • Page 74: Changing Presence On

    Tap the desired contact from the desired group. or press To place multiple calls: You can have more than one call on your SIP-T48G IP phone. To place a new call during an active call, do the following: . The active call is placed on hold.
  • Page 75 Basic Call Features Answering when not in another Call Call duration and destination will always appear on the touch screen for the active call. 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 the headset mode deactivated, tap...
  • Page 76 User Guide for the SIP-T48G IP Phone To redial a previously dialed number from your phone: Press when the phone is idle. Tap the desired entry from the placed calls list. or press to redial. You can use auto answer to automatically answer an incoming call.
  • Page 77 Basic Call Features You can enable or disable call waiting on the phone. If call waiting is enabled, you can receive another call when there is an active call on the phone. Otherwise, another incoming call is automatically rejected by the phone with a busy message when there is an active call on the phone.
  • Page 78 User Guide for the SIP-T48G IP Phone The original call will be placed on hold. to forward the incoming call. to ignore the incoming call. to reject the incoming call. Call waiting is configurable via web user interface at the path Features->General Information.
  • Page 79 You can configure your phone to forward incoming calls to another party or voice mailbox by the static forwarding. You can also forward calls while your phone is ringing, refer to the dynamic forwarding. SIP-T48G supports the following static forward ways: Forward to Voice Mail: incoming calls are forwarded to voice mailbox. ...
  • Page 80 User Guide for the SIP-T48G IP Phone To enable call forward: ->Call Features->Call Forward. You can also press when the phone is idle. Mark the On radio box of the Call Forward field. Tap the desired forwarding type. Depending on your selection: a.) If you tap Forward to Voice Mail:...
  • Page 81 Basic Call Features or press The prompting message “Call Forwarding On” appears on the touch screen. If you tap Simultaneously Call: Enter the desired number that you want to ring simultaneously, and then or press You can also enter the first few continuous characters of the contact name or the contact number, and then tap the desired entry from the result list, and then tap or press...
  • Page 82 User Guide for the SIP-T48G IP Phone To disable call forward: ->Call Features->Call Forward. You can also press when the phone is idle. Mark the Off radio box of the Call Forward field. to accept the change. Lync client supports the following static forward ways: Forward my calls to: Voice Mail: incoming calls are forwarded to voice mailbox.
  • Page 83 Basic Call Features To forward incoming calls immediately without ringing your phone: In Lync client, click and then select Call Forwarding Settings. Mark the radio box of the Forward my calls to field. Select the desired forwarding type from the pull down-list of Forwarding my calls Depending on your selection:...
  • Page 84 User Guide for the SIP-T48G IP Phone If you select Voice Mail: Incoming calls are forwarded directly to the voice mailbox. The touch screen is shown as below: If you select New Number or Contact: Select the contact or enter the phone number you want to forward calls to.
  • Page 85 Basic Call Features The touch screen is shown as below. If you select My Delegates: Add the delegates you want to forward calls to when you receive an incoming call. The phone of the delegates will ring after the time specified by you.
  • Page 86 User Guide for the SIP-T48G IP Phone The touch screen is shown as below: To ring other phones simultaneously when your phone is ringing: In Lync client, click and then click Call Forwarding Settings. Mark the radio box of the Simultaneously ring field.
  • Page 87 Basic Call Features If you select New Number: Enter the phone number in the pop-up window, and then click OK to accept the change. The number will ring simultaneously when you receive an incoming call. If you select My Delegates: Add the delegates you want to ring simultaneously when you receive an incoming call.
  • Page 88 User Guide for the SIP-T48G IP Phone If you select My Team-Call Group: Add the contacts in the Team-Call Group. All members in the group will ring simultaneously when you receive an incoming call. The phone of the members in the group will ring after the time specified by you.

  • Page 89: Dynamic Forwarding

    Basic Call Features To forward an incoming call to another party: When the phone is ringing, tap Do one of the following to forward the incoming call: Tap the avatar of the desired contact in Favorites screen. Enter the contact number that you want to forward the incoming call to, and then press or tap on the on-screen keyboard.
  • Page 90 If no members are available, the call is held in a queue until a member is available. For example, a response group named “yealink” is configured in advance. User A is an available member in the group. When a user named Hedy calls the response group via...
  • Page 91 Basic Call Features phone number 2216. For more information on how to assign delegates on the Lync client, refer to My Delegates on page 77. Note Boss-admin feature is configurable via Lync client only. Boss: Lin Wei (phone number: 2216) Delegate: Merry (phone number: 2248) Caller: Hedy (phone number: 2227) Answering incoming calls...
  • Page 92 User Guide for the SIP-T48G IP Phone Placing a call on hold When the delegate taps to place the call on hold, The touch screen of the boss’s phone is shown below: Retrieving a held call The boss taps the Boss/Admin soft key to view the calls that are held by delegates.
  • Page 93 Basic Call Features Your delegate(s) will be displayed. Answering incoming calls When a user calls the boss, the phones of the boss and delegate will ring simultaneously. If the boss answers the incoming call, the delegate’s phone will stop ringing and the touch screen of the delegate’s phone is shown below:...
  • Page 94 User Guide for the SIP-T48G IP Phone Placing a call on hold The boss taps the to place the call on hold, the touch screen of the delegate’s phone is shown below: Retrieving a held call The delegate taps the Boss/Admin soft key to view the calls that are held by boss.
  • Page 95 Basic Call Features Your boss(es) will be displayed. Lync Server can specify a private line to user in addition to their primary line. Private lines are often assigned to boss or executives, who need to deal with some important or confidential calls.
  • Page 96 User Guide for the SIP-T48G IP Phone When receiving a private call, the touch screen of the phone will prompt ”Call for private line”: Private lines can only be configured on the Lync client only. Contact your administrator Note for more information.
  • Page 97 Basic Call Features Tap the avatar of the desired contact in Favorites screen. Enter the number you want to transfer the call to. Press or tap on the on-screen keyboard. You can also enter the first few characters of the contact name or the contact number, then tap the desired contact from the result list, and then press or tap the desired number.
  • Page 98 User Guide for the SIP-T48G IP Phone to join all parties in the conference. During the conference call, you can do one of the following: Press or tap to place the conference call on hold. to split the conference call into two individual calls on hold.
  • Page 99 Basic Call Features The touch screen of phone A displays the call park retrieve code. To retrieve the parked call on phone A: After things are processed, user on phone A taps to retrieve the parked call. To retrieve the parked call on phone C: User walks to an available conference room where the phone is designated as phone C.
  • Page 100 User Guide for the SIP-T48G IP Phone You can leave voice mails for someone else on the SIP-T48G IP phone. You can also listen to the voice mails stored in a voice mailbox. When receiving a new voice mail, the phone will play a warning tone.
  • Page 101 Basic Call Features Select Enabled from the pull-down list of Voice Mail without PIN. Click Confirm to accept the change.
  • Page 102 User Guide for the SIP-T48G IP Phone...

  • Page 103: Better Together Over Ethernet

    Lync client for third party call control. You can place, answer, and hold audio calls from your SIP-T48G IP phone and the Lync client on your PC/PAD simultaneously. In order to use BToE, you need to download and install the Yealink BToE Connector application on your PC/PAD.
  • Page 104 Ensure that the dialog lists YEALINK NETWORK TECHNOLOGY CO., LTD. as the verified publisher and click Yes. If the YEALINK NETWORK TECHNOLOGY CO., LTD. is not listed as the publisher, click No and download the application again from the Yealink website.
  • Page 105 The Yealink BToE Connector Setup Wizard is displayed as below: Click Browse… to select an installation folder and click Install to begin the installation. By default, the Yealink BToE Connector application is installed in the directory C:\Program Files\Yealink\Yealink BToE Connector\.
  • Page 106 User Guide for the SIP-T48G IP Phone A status bar showing the Yealink BToE Connector installation’s progress is displayed as below: The installation may take several minutes. A Windows Security is displayed as below during installation: Click Always trust software from “YEALINK NETWORK TECHNOLOFY CO., LTD”, and...
  • Page 107 If the checkbox of Run Yealink BToE Connector 2.0.14.0 is not checked, you need to start the Yealink BToE Connector manually. Click Finish. The computer starts to install device driver software: To use Yealink BToE Connector on your PC/PAD, the device driver software needs to be installed.
  • Page 108 “Skip obtaining driver software from Windows Update” to reduce waiting time. After installation, the Yealink BToE Connector and the application driver run successfully, a prompt message is displayed in the notification area of the system tray as below: You can hover your cursor over to view the status of Yealink BToE Connector.
  • Page 109 The Yealink BToE Connector starts on your PC/PAD automatically, click , the following window will appear: The Yealink BToE connector icon is displayed in the notification area of the system tray as below: To set up the Yealink BToE connector:...
  • Page 110 User Guide for the SIP-T48G IP Phone Click Settings(P), you can set up the Yealink BToE Connector, and then click OK to  save. Click About(A), you can view the information of Yealink BToE Connector.  Click Exit(E), you can close the software.
  • Page 111 Pairing your phone with your Lync client Ensure that the Yealink BToE Connector application is running on your PC/PAD. If the Lync user signing on the phone is not the same as the one signing on the Lync client, you need to sign out the current user in advance.
  • Page 112 Phone IP field, and your phone and Lync client are paired automatically. The Yealink BToE connector interface is displayed as below when your phone and Lync client are paired successfully: If your PC/PAD is not connected to the PC port on the phone (network of the PC/PAD will not be provided by the phone), click Stop and uncheck the checkbox of Auto to pair your phone and Lync client manually.
  • Page 113 Better Together over Ethernet The Yealink BToE connector interface is displayed as below when your phone and Lync client are paired successfully: Before using BToE feature, you need to ensure that your phone is set as the primary device in your Lync client on your PC/PAD.
  • Page 114 After finishing the above steps, you can use BToE feature. Note If Yealink T48 Phone is not selected as your primary device, you will not be able to use BToE feature (for example, calls made on the Lync client will not be displayed on the phone).
  • Page 115 Better Together over Ethernet Hover your cursor over the icon in your Lync conversation window to display the control panel, and then click Hold Call. The call is placed on hold on your phone and your Lync client. To resume a held call: Do one of the following: or press on your phone.
  • Page 116 User Guide for the SIP-T48G IP Phone...

  • Page 117: Troubleshooting

    Troubleshooting This chapter provides general troubleshooting information to help you solve the problems you might encounter when using your SIP-T48G IP phone. If you require additional information or assistance with your new phone, contact your system administrator. Why is the touch screen blank? Ensure that the phone is properly plugged into a functional AC outlet.
  • Page 118 PIN Login uses the user’s extension and PIN to sign in, and it is only available on the phone user interface. How to check if the application driver of the Yealink BToE Connector is installed on the PC/PAD?
  • Page 119 PC/PAD, and both of them start successfully. If the phone still cannot pair with the Lync client, reboot the PC/PAD. After reboot, if the phone still cannot pair with the Lync client, uninstall the Yealink  BToE Connector and application driver, and then reinstall them.
  • Page 120 User Guide for the SIP-T48G IP Phone Why does the phone play a tone when there is a call on hold? How to disable it? When there is a call on hold, the phone will play a hold tone every 30 seconds. Call hold tone is enabled by default.
  • Page 121 Troubleshooting You can also contact your system administrator for help. If logging into the web user interface of the phone with the user credential, you need to Note enter the current user password in the Old Password field. User password is configurable via web user interface only. How to reboot the phone? To reboot the phone via web user interface: Click on Settings->Upgrade.
  • Page 122 User Guide for the SIP-T48G IP Phone 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 123 Troubleshooting The system log level is 3 by default. You can configure the system log level by selecting the desired level from the pull-down list of System Log Level. You can also export the system log to a syslog server. Contact your system administrator for more information. Note It is recommended to reset the syslog level to 3 after exporting the system syslog.
  • Page 124 5 minutes to complete. Please don't power off!”. Click OK to confirm upgrading. SIP-T48G IP phone can be also upgraded from Lync server. For more information on how Updating Lync Phone to upgrade the SIP-T48G IP phone from Lync server, refer to...
  • Page 125 Troubleshooting Tap the Reset key. The touch screen prompts the following warning: Tap OK. The phone begins resetting. After reset, the touch screen prompts “Welcom Initializing…Please wait”.
  • Page 126 User Guide for the SIP-T48G IP Phone The phone will be reset to factory sucessfully after startup. Note You can also long press the OK key to perform the full reset function when the phone is idle. Reset of the phone may take a few minutes. Do not power off until the phone starts up...

  • Page 127: 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 128 User Guide for the SIP-T48G IP Phone Place the device on a stable and level platform.  Please place no heavy objects on the device in case of damageand  deformation caused by the heavy load. Keep at least 10 cm between the device and the closest object for heat ...

  • Page 129: Appendix A-Time Zones

    Appendix A-Time Zones Time Zone Time Zone Name GMT−11 Samoa GMT−10 United States-Hawaii-Aleutian GMT−10 United States-Alaska-Aleutian GMT−9 United States-Alaska Time GMT−8 Canada(Vancouver, Whitehorse) GMT−8 Mexico(Tijuana, Mexicali) GMT−8 United States-Pacific Time GMT−7 Canada(Edmonton, Calgary) GMT−7 Mexico(Mazatlan, Chihuahua) GMT−7 United States-Mountain Time GMT−7 United States-MST no DST GMT−6...
  • Page 130 User Guide for the SIP-T48G IP Phone Time Zone Time Zone Name GMT+1 Germany(Berlin) GMT+1 Hungary(Budapest) GMT+1 Italy(Rome) GMT+1 Luxembourg(Luxembourg) GMT+1 Macedonia(Skopje) GMT+1 Netherlands(Amsterdam) GMT+1 Namibia(Windhoek) GMT+2 Estonia(Tallinn) GMT+2 Finland(Helsinki) GMT+2 Gaza Strip(Gaza) GMT+2 Greece(Athens) GMT+2 Israel(Tel Aviv) GMT+2 Jordan(Amman)

  • Page 131: Index

    Index Hardware Component Instructions History Screen About This Guide Administrator password Answering Calls Icon Instructions Attaching Stand In This Guide Account Lock Inbound Private Line Audio Settings Auto Answer Always Online Key as Send Backlight Boss-Admin Feature Language LED Instructions Basic Network Settings Better Together over Ethernet Limitation of Liability...
  • Page 132 User Guide for the SIP-T48G IP Phone Troubleshooting User Interfaces Voice Mail Volume Warranty Web User Interface WEEE Warning...

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