Page 2 Trademarks Yealink® , the logo and the name and marks is trademark of Yealink (Xiamen) Network Technology CO., LTD, which are registered legally in China, the United States, EU (European Union) and other countries. All other trademarks belong to their respective owners. Without Yealink’s express written permission, recipient shall not reproduce or transmit any portion hereof in any form or by any means, with any purpose other than personal use.
Page 3 End User License Agreement This End User License Agreement ("EULA") is a legal agreement between you and Yealink. By installing, copying or otherwise using the Products, you: (1) agree to be bounded by the terms of this EULA, (2) you are the owner or an authorized user of the device, and (3) you represent and warrant that you have the right, authority and capacity to enter into this agreement and to abide by all its terms and conditions, just as if you had signed it.
Page 5 Yealink T48S Skype for Business 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.
Page 7: In This Guide
It is designed to work with the Skype for Business Server. Connecting a Yealink T48S Skype for Business phone to the Skype for Business Server allows you to place regular and Voice over Internet Protocol (VoIP) calls, answer calls, forward calls, conduct a Skype for Business conference call, and dial from your Skype for Business directory through integration with Microsoft’s Active Directory.
Page 8 User Guide for the T48S Skype for Business phone...
Page 9: Table Of Contents
Table of Contents Table of Contents About This Guide ................v In This Guide ................................v Summary of Changes ............................. v Changes for Release 9, Guide Version 9.42 ....................v Table of Contents ................ VII Overview ..................13 Hardware Component Instructions ....................... 13 Icons Instructions ..............................
Page 10 User Guide for the T48S Skype for Business phone Entering Data and Editing Fields........................46 Using the Phone Keypad ..........................46 Using the On-screen Keyboard ........................49 Phone Status ................................51 Viewing the Phone Status ..........................51 Basic Network Settings ............................53 Configuring the DHCP ............................
Page 11: Table Of Contents
Table of Contents Basic Call Features ..............105 Switching among the Handset, Speakerphone and Headset Modes ..........106 Placing Calls ................................106 Placing a Call ..............................106 Placing Multiple Calls ............................ 107 Placing a Call from the Search Results List ................... 107 Dialing the Hotline Number ........................
Page 12 User Guide for the T48S Skype for Business phone Retrieving Parked Skype for Business Calls ..................153 Group Call Pickup ............................... 153 Shared Line Appearance(SLA) ........................154 Viewing Shared Line Appearances ......................155 Answering SLA Calls............................156 Placing a SLA Call on Hold .......................... 157 Resuming Held SLA Calls ..........................
Page 13 Better Together over Ethernet ........................206 Getting Started with Better Together over Ethernet ................ 206 Installing the Yealink Better Together over Ethernet Connector ..........206 Pairing Your Phone with Your Computer ....................211 Setting Your Phone as the Default Audio Playback for Your Computer ........214 Enabling Better Together over Ethernet ....................
Page 14 User Guide for the T48S Skype for Business phone Troubleshooting Solutions ..........................239 Regulatory Notices ..............249 Service Agreements ............................249 Limitations of Liability ............................249 Safety Instructions .............................. 249 Appendix A - Time Zones ............251...
Page 15: Overview
Overview Overview This chapter provides the overview of the T48S Skype for Business phone. Topics include: Hardware Component Instructions  Icons Instructions  User Interfaces  Documentations  For more information or assistance with your new phone, contact your system administrator. Hardware Component Instructions The main hardware components of the T48S Skype for Business phone are the touch screen and the keypad.
Page 16 User Guide for the T48S Skype for Business phone Hardware component instructions of the T48S Skype for Business phone are: Item Description Indicates whether the phone is powered up and some feature statuses. ① Power LED Indicator • Receives an incoming call—Fast-flashing •...
Page 17: Icons Instructions
⑭ Reversible Tab to adjust the reversible tab, refer to Yealink Wall Mount Quick Installation Guide for Yealink IP Phones • Lifts the handset from the handset cradle, then the hookswitch bounces and the phone connects to the line. ⑮...
Page 18 User Guide for the T48S Skype for Business phone Icons Description Missed Calls Bluetooth mode is on Bluetooth headset is both paired and connected Hands-free speakerphone mode Location is not set Voicemail Unread voicemail Read voicemail Auto Answer Enable the conference announcement Conference presenter Conference attendee Conference lock...
Page 19: Led Instructions
Overview Icons Description Recording in progress Recording paused Set your phone as primary audio device for PC LED Instructions Power LED Indicators Power Indicator LED LED Status Description The phone is initializing. Fast-flashing red (300ms) The phone is ringing. Slow-flashing red (1s) The phone receives a voicemail.
Page 20: Phone User Interface
User Guide for the T48S Skype for Business phone interface. While in some particular cases, only via phone user interface or via web user interface is available for you to operate or configure your IP phone. This guide mainly takes phone user interface as an example.
Page 21 Overview The figure below shows the phone's menus and submenus.
Page 22: Web User Interface
User Guide for the T48S Skype for Business phone Web User Interface In addition to the phone user interface, you can also customize your phone via web user interface. In order to access the web user interface, you need to know the IP address of your new phone by pressing the OK key on the phone when the phone is idle.
Page 23 Overview Features Phone User Interface We User Interface --IPv4 √ √ --IPv6 √ √ Registration --PIN Authentication √ √ --User Sign-in √ √ --Web Sign-in √ √ --Sign in via PC √ --CAP Provisioning √ Basic Phone Settings --Remember Password √...
Page 24 User Guide for the T48S Skype for Business phone Features Phone User Interface We User Interface --Local Directory √ √ --Skype for Business √ Directory --Call History Management --History Management √ √ --History Settings √ √ --Dial Now √ Basic Call Features --Hotline √...
Page 25: Documentations
In the package/ Quick Start Guide and phone English/Chinese On the website customizations Phone/Web user interface settings Basic call features User Guide On the website English/Chinese and BToE (Better Together over Ethernet) feature Note You can download the latest documentations online: http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage...
Page 26 User Guide for the T48S Skype for Business phone...
Page 27: Getting Started
Getting Started Getting Started This chapter provides the following basic installation instructions and information for obtaining the best performance with the T48S Skype for Business phone. Topics include: Phone Initialization  Signing into Skype for Business  Signing Out of Skype for Business ...
Page 28: Signing Into Skype For Business
User Guide for the T48S Skype for Business phone Signing into Skype for Business After the initialization, the phone enters the menu screen. The touch screen will be shown as below: In the menu screen, you can view phone status or phone settings. Skype for Business users are authenticated by Microsoft Active Directory Domain Service.
Page 29: Pin Authentication
Getting Started PIN Authentication You can sign into Skype for Business on your phone with your PIN Authentication credentials. Your system administrator provides you with your PIN Authentication credentials. Note The system administrator should configure network environment in advanced for PIN Authentication method.
Page 30: Web Sign-In
User Guide for the T48S Skype for Business phone Tap Sign in. Select User Sign-in. Tap the Sign-in Address field. The on-screen keyboard appears. For more information on how to use the on-screen keyboard, refer to Using the On-screen Keyboard on page 49.
Page 31 Getting Started To sign into Skype for Business Server using Web Sign-in method via phone user interface: Select Web Sign-in from the pull-down list of Login Type. Tap Sign in. The pairing code and URL are shown on the screen. On your computer, enter the URL into your web browser.
Page 32 User Guide for the T48S Skype for Business phone On the Skype for Business Authentication website, enter your email address (e.g., zhaops04@example.onmicrosoft.com) in the Email address field. Click Verify email to verify the email address. The sign-in screen will appear if the email address is valid. Enter your Online account and password.
Page 33: Signing In Via Pc
Getting Started Enter the pairing code generated on the phone (e.g., grvmk6bgr) into the web browser. 10. Click Continue. 11. Click the account to sign in. A confirmation message is displayed when your phone successfully signs into Skype for Business. Web Sign-In feature is configurable via web user interface at the path: Features->General Information->Web Sign in.
Page 34: Binding Your Mobile Phone With Online Account
User Guide for the T48S Skype for Business phone Binding Your Mobile Phone with Online Account To bind your mobile phone with online account: On the Skype for Business Client, enter your online account, and then click Sign in. Enter your sign-in password, and then click Sign in. Click Set it up now.
Page 35: Passing Mfa
Getting Started If you select Call me: Your mobile phone will receive a call and you need to follow the voice prompt to authenticate. Click Done. If you select Send me a code by text message: Enter the correct verification code received from your mobile phone in the corresponding field.
Page 36 User Guide for the T48S Skype for Business phone If you want to change to text verification method, do the following: Tap Switch on the verification screen. Select Text verification. Enter the verification code received in the corresponding field and then tap Verify.
Page 37 Getting Started If you want to change to voice call verification method, do the following: Tap Switch on the verification screen. Select Voice call verification. Answer the call and follow the voice prompt to complete authentication. Your phone will sign into Skype for Business Server successfully. Passing MFA When Using Web Sign-in To pass MFA when using Web Sign-in method via web user interface: Using Web Sign-in method to sign into Skype for Business.
Page 38 User Guide for the T48S Skype for Business phone Click Sign in another way to switch authentication method. Click Text+XX XXXXXXXXX90. Enter the correct code in the corresponding field and click Verify. If you select Send me a code by text message, your mobile phone will receive a verification code: Enter the correct code in the corresponding field and click Verify.
Page 39: Signing Out Of Skype For Business
Getting Started If you want to change to voice call verification method, do the following: Click Sign in another way to switch authentication method. Click Call+XX XXXXXXXXX90. Answer the call and follow the voice prompt to complete authentication. Your computer prompts the following: You can click Yes to reduce the number of times you are asked to sign in.
Page 40: Presence Status
User Guide for the T48S Skype for Business phone Select Sign Out from the pull-down list of status. The touch screen will prompt “Are you sure to sign out?”. Tap the OK soft key. The phone signs out of Skype for Business Server. After you sign out of Skype for Business, the account-related features (call or view your Skype for Business contacts, etc.) are not available.
Page 41 Getting Started If your presence is It means How this status gets set period of time (set by phone has been inactive for a specified you). time (5 minutes by default). You can also set your presence to this anytime you want. You are off duty and You can set your presence to this Off Work...
Page 42: Changing Presence Status
User Guide for the T48S Skype for Business phone If your presence is It means How this status gets set contact from reaching has assigned by you to be a blocked you via Skype for contact using the Skype for Business Business client.
Page 43: Resetting Presence Status
Getting Started Resetting Presence Status To reset your presence status to the default: Tap your avatar at the top-right corner of the touch screen. Select Reset Status from the pull-down list. Your status will be reset to “Available”. Touch Screen Display If the phone has successfully started up, and a Skype for Business user signs into the Skype for Business Server on the phone, the touch screen will be shown as below:...
Page 44 User Guide for the T48S Skype for Business phone Name Description Shows the Search icon. For more information,  refer to Placing a Call from the Search Results List on page 107. Shows the Lock icon. For more information,  refer to Phone Lock on page 74.
Page 45: Favorites Screen
Getting Started Configuration Screen Display Name Description . to return to the previous screen  Shows the screen title Screen Title Area  . to return to the idle screen  Displays menu items. Menu Tree Area You can tap the desired menu item to enter the corresponding feature configuration screen.
Page 46: History Screen
User Guide for the T48S Skype for Business phone The main window displays the avatar, display name and status icon of the favorite contact. When the number of favorite contacts is more than 8, the page switch keys will appear on the right side of the main window.
Page 47: Menu Screen
Getting Started The main window displays the groups and the number of members. When the number of groups is more than 9, the page switch keys will appear on the right side of the main window. You can tap or press to turn pages to view other groups.
Page 48: Entering Data And Editing Fields
User Guide for the T48S Skype for Business phone To operate your phone, follow these tips: If you want to Then you can Enter the main menu. Tap the Menu soft key. Go back to the previous menu. or press Tap the item.
Page 49 Getting Started Input Mode Keypad 4ghiGHI ghi4ì í î ï GHI4Ì Í Î Ï 5jklJKL jkl5£ JKL5£ mno6öøòó MNO6ÖØÒ 6mnoMNO ôõñ ÓÔÕÑ 7pqrsPQRS pqrs7ß Ѕ PQRS7Ѕ 8tuvTUV tuv8ù ú û ü TUV8ÙÚÛÜ 9wxyzWXYZ wxyz9ý Þ WXYZ9Ý Þ space space *.,'?!\- *.,'?!\- *.,'?!\- ()@/:_;+&%...
Page 50 User Guide for the T48S Skype for Business phone If you want to Then you can three times 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 press Key:...
Page 51: Using The On-Screen Keyboard
Getting Started Using the On-screen Keyboard Before using the on-screen keyboard to enter data, you need to know the function of the keys on the on-screen keyboard. The T48S Skype for Business phone supports three kinds of input modes: English, Deutsch and French mode. Description Item •...
Page 52 User Guide for the T48S Skype for Business phone When you tap &123, the on-screen keyboard is shown as below: Item Description Special characters Enter special characters Numbers Enter numbers • Tap to delete the entered characters one by Delete key one.
Page 53: Phone Status
Getting Started If you want to Then you can highlighted, and then tap You can tap to hide the on-screen keyboard, or tap to reopen the on- screen keyboard. Phone Status You can view phone status via phone user interface or web user interface. Available information of phone status includes: General information (IPv4 address or IPv6 address, MAC address and firmware version).
Page 54 User Guide for the T48S Skype for Business phone To view the phone status via phone user interface: Press , or tap Menu->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 PC.
Page 55: Basic Network Settings
Getting Started The phone status is displayed on the first page of the web user interface. Basic Network Settings In order to use your phones, you must set up basic network. You can use DHCP or configure a static address to connect your phone to the network. If your phone cannot contact a DHCP server, you need to configure network settings manually.
Page 56: Configuring The Static Ipv4 Address
User Guide for the T48S Skype for Business phone Configuring the Static IPv4 Address To configure a static IPv4 address via phone user interface: Tap Menu->Setting->Advanced (default password: admin) ->Network->WAN Port. Select IPv4 or IPv4 & IPv6 from the pull-down list of IP Mode. Tap IPv4.
Page 57 Getting Started Select Static IP from the pull-down list of Type. Enter the desired value in the IP address, IPv6 IP Prefix, Gateway, Pri.DNS and Sec.DNS field respectively. to accept the change. Network is configurable via web user interface at the path Network->Basic.
Page 58 User Guide for the T48S Skype for Business phone...
Page 59: Customizing Your Phone
Customizing Your Phone Customizing Your Phone You can customize your T48S Skype for Business phone by personally configuring certain settings, for example, backlight, time & date, and ringtones. You can also manage the contacts and call history. This chapter provides basic operating instructions for customizing your phone. Topics include: General Settings ...
Page 60 User Guide for the T48S Skype for Business phone Select Enabled from the pull-down list of Remember Password. Click Confirm to accept the change. A dialog box pops up to prompt you that this configuration will take effect after a reboot. Click OK to reboot the phone.
Page 61: Account Lock
Customizing Your Phone The login screen will be shown as below: (User Sign-in method) (PIN Authentication method) Note Remember password feature is only applicable to PIN Authentication and User Sign-in method. Account Lock You can lock your account to prevent your account being signed in or signed out randomly. If account lock feature is enabled, users are prompted for administrator password to sign in or sign out.
Page 62: Always Online
User Guide for the T48S Skype for Business phone Tap the On radio box of the Account Lock field. to accept the change. Account lock is configurable via web user interface at the path Account->Basic->Account Lock. Always Online Always online feature can keep the account to stay in available status when the phone is idle. If you enable the always online feature, your available status will not change to other status automatically until you manually change it.
Page 63: Screen Saver
Customizing Your Phone Always online is configurable via web user interface at the path Account->Basic->Always Online. Screen Saver The screen saver will automatically start when the phone is idle for the preset waiting time. The screen saver is used to blank the screen or fill it with moving images or patterns. The screen saver will be stopped if one of the following phone events occurs: Press any key.
Page 64 User Guide for the T48S Skype for Business phone Uploading a Custom Picture as Screen Saver You can upload custom pictures to be the screen savers of your phone via web user interface. The custom picture must meet the following: Single File Phone Model Format...
Page 65: Power Saving
Customizing Your Phone To configure the screen saver via phone user interface Tap Menu->Setting->Basic->Display->Screensaver. Select the desired time from the pull-down list of Wait Time. Tap the desired radio box of the Display Clock field. Select the desired screen saver type from the pull-down list of Screensaver Type. This field is configurable only if you have uploaded a custom picture via web user interface.
Page 66 User Guide for the T48S Skype for Business phone delegate using the Skype for Business client). If the screen saver is enabled (refer to Screen Saver on page 61) on your phone, power-saving mode will still occur. You can configure the following power-saving settings: Office Hour ...
Page 67 Customizing Your Phone Enter the starting time and ending time respectively in the desired day field. Click Confirm to accept the change. Configuring the Idle Timeout Idle Timeout specifies the period of time before the phone enters power-saving mode. The following three types of idle timeout you can configure: Office Hours Idle TimeOut: Configures the idle timeout for office hours.
Page 68: Backlight
User Guide for the T48S Skype for Business phone Enter the desired value between 1 and 30 (minutes) in the User input extension Idle TimeOut field. Click Confirm to accept the change. Backlight Backlight has two options: Backlight Active Level: The intensity of the touch screen when the phone is active. You can change the intensity of the touch screen.
Page 69: Contrast
Customizing Your Phone Select the desired value from the pull-down list of Inactive Level. to accept the change. Backlight is configurable via web user interface at the path Settings->Preference. Contrast You can only configure the contrast of the expansion module EXP40 connected to the T48S Skype for Business phone to a comfortable level on the phone.
Page 70: Showing Full Name
User Guide for the T48S Skype for Business phone Showing Full Name Showing full name allows the phone to extend the display length of the contacts’ names. When showing full name feature is set to off: To configure the phone to display full name via phone user interface: Tap Menu->Setting->Basic->Display->Show full name.
Page 71: Language
Customizing Your Phone After a reboot, the display length of the contacts’ names on the phone are extended. Language The default language of the phone user interface is English. If the language of your web browser is not supported by the phone, the web user interface will use English by default. You can change the language for the phone user interface and the web user interface respectively.
Page 72: Time & Date
User Guide for the T48S Skype for Business phone Changing the Language for the Web User Interface To change the language for the web user interface: Click on Settings->Preference. Select the desired language from the pull-down list of Language. Click Confirm to accept the change. Text displayed on the web user interface will change to the selected language.
Page 73 Customizing Your Phone The default time zone name is “China(Beijing)”. to accept the change. SNTP Setting is configurable via web user interface at the path Settings->Time & Date. Note on the Skype for Please refer to Appendix A - Time Zones for the list of available time zones Business phone.
Page 74: Administrator Password
User Guide for the T48S Skype for Business phone Configuring the Time and Date Format To configure the time and date format via phone user interface: Tap Menu->Setting->Basic->Date & Time->Format. Select the desired date format from the pull-down list of Date Format. Select the desired time format (12 Hour or 24 Hour) from the pull-down list of Time Format.
Page 75: Key As Send
Customizing Your Phone password is “admin”. For security reasons, you should change the default administrator password as soon as possible. To change the administrator password via phone user interface: Tap Menu->Setting->Advanced (default password: admin)->Set Password. Enter the desired value in the Current Password, New Password and Confirm Password field respectively.
Page 76: Phone Lock
User Guide for the T48S Skype for Business phone to accept the change. Key as send is configurable via web user interface at the path Features->General Information. Phone Lock You can choose to lock your phone in following situations: Prevent unauthorized outgoing calls. ...
Page 77 Customizing Your Phone After you set a lock PIN, you can use it to unlock your phone. Note The PIN's length is controlled by the server. For more information, contact your administrator. If you do not create a lock PIN when prompted, you will be automatically signed out of the phone in a set amount of time, and you must create a lock PIN when you sign in again.
Page 78 User Guide for the T48S Skype for Business phone To unlock the phone via phone user interface: Enter the lock PIN in the input field. Tap Unlock or press to unlock the phone. Configuring the Unlock Attempts You can specify the maximum number of unsuccessful unlock attempts for a locked phone that is not during a call.
Page 79 Customizing Your Phone You will be automatically signed out of the phone after five unsuccessful unlock attempts. Changing Your lock PIN To change the phone lock PIN via phone user interface: Tap Menu->Setting->Basic->Phone Lock. Select Enabled from the pull-down list of Phone Lock. Enter the lock PIN in the Current PIN field.
Page 80 User Guide for the T48S Skype for Business phone To reset the lock PIN when the phone is locked via phone user interface: Tap Forgot unlock PIN? on the lock screen. Enter your login password for your Skype for Business account. Tap Unlock.
Page 81: Audio Settings
Customizing Your Phone Audio Settings Volume You can adjust the ringer volume when the phone is idle or ringing. You can also adjust the receiver volume of currently engaged audio devices (handset, speakerphone or headset) when the phone is in use. To adjust the volume via phone user interface Press to adjust the ringer and audio volume.
Page 82: Key Tone
User Guide for the T48S Skype for Business phone Uploading a Custom Ringtone To set the custom ring tones, you need to upload the custom ring tones to the phone in advance. The ring tone format must meet the following: Format Total File Size Note...
Page 83: Contact Management
Customizing Your Phone Tap the On radio box of the Key Tone field. to accept the change. Key tone is configurable via web user interface at the path Features->Audio. Contact Management The phone directory contains local directory and Skype for Business directory. Local directory (All or Favorites) ...
Page 84: Skype For Business Directory
User Guide for the T48S Skype for Business phone To search for contacts: Enter a few continuous characters of the contact name or continuous numbers of the contact number to search for a desired contact. The entries whose name or phone number matches the characters entered will appear on the touch screen.
Page 85 Customizing Your Phone Adding Skype for Business Contacts from the Search Results To add a Skype for Business contact from search results via phone user interface: Tap the avatar of the desired contact from the search results. Tap the Add to SFB soft key from the prompt list. Tap the desired Skype for Business group.
Page 86 User Guide for the T48S Skype for Business phone Select the desired Skype for Business group. Viewing Skype for Business Contacts You can view the following information about each Skype for Business contact on the phone: Name  Presence Status ...
Page 87 Customizing Your Phone The detailed information of the contact appears on the touch screen. Tap the black area on the right side or press to return to the pervious screen. Viewing Skype for Business Favorites on the Favorites Screen You can also view Skype for Business favorites on the Favorites screen. To view the Skype for Business favorites on the Favorites screen: Tap Favorites.
Page 88: Local Directory
Contacts can be added either one by one or in batch using a local contact file. Yealink Skype for Business phones support the contact files in * .xml or *.csv format.
Page 89 Customizing Your Phone From Skype for Business directory  From history records. For more information, refer to Placing a Call from History Records.  Adding Local Contacts Manually To add a contact to the local directory manually: Tap Contacts->Local Directory->All. Enter name, address, work number, mobile number, home number, title and email in the corresponding fields.
Page 90 User Guide for the T48S Skype for Business phone Tap the Skype for Business group (e.g., Favorites or Other Contacts) where contains the desired contact is in. Tap the avatar of the desired contact. Tap the Add to local soft key. Edit the contact information.
Page 91 Customizing Your Phone Email  Ringtone  Group  To view the local contacts: Tap Contacts->Local Directory. Tap the desired group. Tap the avatar of the desired contact. The detailed information of the contact appears on the touch screen. Tap the black area on the right side or press to return to the pervious screen.
Page 92 User Guide for the T48S Skype for Business phone Tap the desired group. Tap the avatar of the desired contact. Tap Delete. The touch screen prompts” Delete Selected Item?”. Tap the OK soft key to delete. Deleting the contact is configurable via web user interface at the path Directory->Local Directory.
Page 93 Customizing Your Phone Click Import XML to import the contact list. The web user interface prompts "The original contact will be covered, continue?". Click OK to import the contact list. To import a CSV contact list file via web user interface: Click on Directory->Local Directory.
Page 94 User Guide for the T48S Skype for Business phone (Optional) Check the Show Title checkbox. It will prevent importing the title of the contact information which is located in the first line of the CSV file. Click Import CSV to import the contact list. (Optional) Tap the On radio box of the Del Oldcontact field.
Page 95 Customizing Your Phone To export a contact list via web user interface: Click on Directory->Local Directory. Click Export XML (or Export CSV). Click Save to save the contact list to your local system. Local Favorites Favorites are the contacts in your directory that you’re in touch with most frequently. You need to assign an index number for a local favorite contact.
Page 96 User Guide for the T48S Skype for Business phone The valid value of index number ranges from Null to 32 and the lowest number is Null. The contact with the lowest index number displays first. to accept the change. Adding a local favorite is configurable via web user interface at the path Directory->Local Directory.
Page 97 Customizing Your Phone Viewing Local Favorites You can view the local favorites on the Favorites screen or Contacts screen. To view the local favorites on the Favorites screen: Tap Favorites. The local favorite is indicated by the icon . By default, local favorites are displayed before the Skype for Business favorites.
Page 98 User Guide for the T48S Skype for Business phone Select the desired index number from the pull-down list of Index. to accept the change. The phone reorders the favorites according to the new index number. Managing Local Favorites On your phone, local favorites and the Skype for Business favorites are displayed on the Favorites screen.
Page 99: Placing Calls To Contacts
Customizing Your Phone To configure the display priority of local favorite via web user interface: Click on Directory->Settings. Select the desired value from the pull-down list of Local Favorite. Depending on your selection: – If Disabled is selected, only the Skype for Business favorites are displayed on the idle screen.
Page 100: Viewing History Records
User Guide for the T48S Skype for Business phone Viewing History Records To view the history records: Tap the History soft key. The touch screen displays all call records. or press to turn pages. You can tap All, Missed, Placed or Received to view entries in each call list directly. Tap the desired entry.
Page 101: Adding Contacts From History Records
Customizing Your Phone To place a call from history records: Tap the History soft key. The touch screen displays all call records. or press to turn pages. You can tap All, Missed, Placed or Received to view entries in each call list directly. Tap the desired entry.
Page 102: Deleting History Records
User Guide for the T48S Skype for Business phone Deleting History Records To delete a history record: Tap the History soft key. or press to turn pages. You can tap All, Missed, Placed or Received to view entries in each call list directly. Tap the desired entry.
Page 103: Dial Plan
Customizing Your Phone To disable history record via phone user interface: Tap Menu->Setting->Features>History Setting. Tap the Off radio box of the History Record field. to accept the change. Dial Plan Dial plan is a string of characters that governs the way the phone processes the inputs received from the phone’s keypads.
Page 104 User Guide for the T48S Skype for Business phone Syntax Description 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 105: Delay Time For Dial-Now Rule
Customizing Your Phone Delay Time for Dial-Now Rule You can configure the delay time for dial-now rules. That is, you can configure your phone to automatically dial out the phone number which matches a dial-now rule, after the designated delay time. To configure the delay time for dial-now rule via web user interface: Click on Features->General Information.
Page 106 User Guide for the T48S Skype for Business phone...
Page 107: Basic Call Features
Basic Call Features Basic Call Features The T48S Skype for Business phone is as easy to use as a traditional fixed phone which is deployed on the public switched telephone network (PSTN), allowing you to place/answer/transfer a call, or conduct a Skype for Business conference call. Also, you can perform Skype for Business features, like calendar, response groups, boss-admin on this phone.
Page 108: Switching Among The Handset, Speakerphone And Headset Modes
User Guide for the T48S Skype for Business phone Switching among the Handset, Speakerphone and Headset Modes You can place and answer calls on your phone in one of the three ways: Pick up the handset to use the handset mode. ...
Page 109: Placing Multiple Calls
Basic Call Features Check with your system administrator to find out if this feature is available on your phone. Placing Multiple Calls The phones can handle multiple calls at a time. However, only one active call (the call that has audio associated with it) can be in progress at any time.
Page 110: Dialing The Hotline Number
User Guide for the T48S Skype for Business phone The result list will appear on the touch screen: Tap the desired entry from the result list, and then tap Dialing the Hotline Number You can configure a hotline number and a delay. When you lift the handset or press the Speakerphone key, the phone will dial out the hotline number automatically after a designated period of time.
Page 111: Redialing Numbers
Basic Call Features Redialing Numbers To redial the last dialed number from your phone: Press A call to your last dialed number is attempted. Answering Calls When you receive an incoming call on your phone, you can choose to answer it in various ways. You can answer a call or multiple calls, or answer calls automatically.
Page 112: Answering When In Another Call
User Guide for the T48S Skype for Business phone Answering When in Another Call If you have an active call and an incoming call arrives on the phone, the incoming call information is displayed on the touch screen. Answering When in Another Calls The incoming call is answered and the original call is placed on hold.
Page 113: Configuring The Call Waiting
Basic Call Features Tap the On radio box of the Line1 field. to accept the change. icon appears on the touch screen. Auto answer is configurable via web user interface at the path Account->Basic->Auto Answer. Note Auto answer is only applicable when there is no other call in progress on the phone. Configuring the Call Waiting You can enable or disable call waiting on the phone.
Page 114 User Guide for the T48S Skype for Business phone Tap the On radio box of the Play Tone field. to accept the change. To use the call waiting: When the phone receives an incoming call during a call. The phone touch screen displays as below: Do one of the following: to answer the incoming call.
Page 115: Ending Calls
Basic Call Features Call waiting tone is configurable via web user interface at the path Features->Audio->Call Waiting Tone. Ending Calls To end a call: Do one of the following: If you are using the handset, press , hang up the handset or tap If you are using the headset, press or tap If you are using the speakerphone, press...
Page 116: Call Hold/Resume
User Guide for the T48S Skype for Business phone Call Hold/Resume You can place an active call on hold. Only one active call can be in progress on the phone at any time. Other calls can be made and received while placing the original call on hold. If Music on Hold feature is enabled, the phone will play music to the callers who has been placed on hold.
Page 117: Call Forward
Basic Call Features The uploaded music format must meet the following: Duration Format Single File Size .wav 1~500K 1~30s Note The music file must be PCMU/PCMA audio format, mono channel, 8K sample rate and 16 bit resolution. To configure music on hold via web user interface: Click on Settings->MOH.
Page 118 User Guide for the T48S Skype for Business phone Simultaneously Ring to a Contact: The preset number will ring simultaneously when you  receive incoming calls. Forward to Voice Mail: Incoming calls are forwarded to voicemail.  Forward to Delegates: If you have delegates assigned to your line, you can forward all ...
Page 119 Basic Call Features You can also press when the phone is idle. Tap the Off radio box of the Call Forward field. to accept the change. Static Forwarding on the Skype for Business Client You can assign static forwarding feature using the Skype for Business client: Forward my calls to: Voicemail: Incoming calls are forwarded to voicemail.
Page 120 User Guide for the T48S Skype for Business phone Configuring Call Forwarding on Skype for Business Client To forward incoming calls immediately without ringing your phone: In Skype for Business client, click and then select Call Forwarding Settings. Tap the radio box of the Forward my calls to field. Select the desired forwarding type from the pull down-list of Forwarding my calls to.
Page 121 Basic Call Features Select the contact or enter the phone number you want to forward calls to. After configuration, incoming calls are forwarded to the preset number or contact. If you select My Delegates: Add the delegates you want to forward calls to when you receive an incoming call. You can also specify that after how many seconds the delegate’s phone ring.
Page 122 User Guide for the T48S Skype for Business phone Depending on your selection: If you select New Number: Enter the phone number in the pop-up window, and then click OK to accept the change. The phone with this number will ring simultaneously when you receive an incoming call.
Page 123 Basic Call Features Add the delegates you want to ring simultaneously when you receive an incoming call. You can also specify that after how many seconds the delegate’s phone rings. If you select My Team-Call Group: Add the contacts into the Team-Call Group. All members in the group will ring simultaneously when you receive an incoming call.
Page 124: Dynamic Forwarding
User Guide for the T48S Skype for Business phone If one member answers the call, other phones which in this Team-Call Group will stop ringing. To disable the call forwarding: In Skype for Business client, click and then select Turn Off Call Forwarding. Configuring the Delay Time for Rejecting Incoming Calls You can configure the delay time for rejecting incoming calls.
Page 125: Team-Call Group
Basic Call Features To forward an incoming call to another party: When the phone is ringing, tap Do one of the following: – Enter a number and then tap – Select a desired contact from the search result list, call history or directory, and then –...
Page 126: Team-Call Ringtone
User Guide for the T48S Skype for Business phone For more information on how to configure team-call group, refer to Configuring Simultaneously Ring on Skype for Business Client on page 119. Assume that you have a team of people working on the same project or task. If you are out of office and your phone rings, anyone in the team-call group can answer the call for you.
Page 127: Response Groups
After a call agent accepts the call, other agents’ phones stop ringing. For example, you have been selected by your system administrator to be a call agent for a response group named “YEALINK”. When a user named “yl30” calls your response group, your phone is shown as below: Note Response group can be configured via by Skype for Business Server only.
Page 128: Call Queue
User Guide for the T48S Skype for Business phone To set a ringtone for the response group via phone user interface: Tap Menu->Setting->Basic->Sounds-> Ring Tones->Response Group. Tap the desired ringtone. to accept the change. Call Queue If you sign into the phone using Online account, you can use call queue feature. On-Premises environment does not support this feature.
Page 129: Private Line Tones
Basic Call Features The system administrator can assign a private line to boss if one of the following situations occurs: The boss doesn’t want to miss important calls denied by his DND status.  The boss doesn’t want the delegate to answer some important or confidential calls for ...
Page 130: Call Transfer
User Guide for the T48S Skype for Business phone To select a ringtone for the private line via phone user interface: Tap Menu->Setting->Basic->Sounds->Ring Tones->Private Line. Tap the desired ringtone. to accept the change. A ringtone for the private line is configurable via web user interface at the path Settings->Preference->Private line ring.
Page 131: Blind Transfer
Basic Call Features Blind Transfer To perform a blind transfer during a call: Press or tap during a call. Do one of the following: Enter a number and then tap Select a desired contact from the search result list, call history or directory, and then Tap the avatar of the desired contact on Favorites screen.
Page 132: Skype For Business Conference
User Guide for the T48S Skype for Business phone Do one of the following: Enter a number and then tap Select a desired contact from the search result list, call history or directory, and then Tap the avatar of the desired contact on Favorites screen. After the party answers the call, press or tap to complete the transfer.
Page 133 Basic Call Features You can also select a desired contact from the search result list, favorites screen, call history or contacts screen. Repeat steps 1-2 to add more parties to the conference. Merging Multiple Calls into a Conference Call Merging All Calls into a Conference Call You can merge all calls into a conference call.
Page 134 User Guide for the T48S Skype for Business phone Merge an active call and a held call into a conference via phone user interface: During multiple calls, tap Tap the avatar of the contact that is held. The active call and the selected held call are merged into a conference.
Page 135: Viewing The Conference Information
Basic Call Features Initiating a Group Conference Call To initiate a group conference call via phone user interface: Tap the Contacts soft key. Tap the desired Skype for Business group. to dial all contacts in the group. Viewing the Conference Information If you are a conference participant, you can view the conference dial-in number and PIN and then send them to the contacts who want to join the conference.
Page 136: Managing The Conference Participants
User Guide for the T48S Skype for Business phone Attendee ( ): A user who is invited to a conference but who is not authorized to act as  a presenter. The attendee cannot manage other participants. To view the conference participants via phone user interface: to view the conference participants’...
Page 137 Basic Call Features To mute all conference participants by organizer or presenters: A notification is displayed on the participants' phones informing them that a presenter has muted the audience. To unmute all conference participants by organizer or presenters: A notification is displayed on the participants' phones informing them that the presenter has unmuted the audience.
Page 138 User Guide for the T48S Skype for Business phone next to the participant to prevent the participant from speaking. A mute icon is displayed next to each person who is muted. To unmute the conference participants by organizer or presenters: next to the participant.
Page 139 Basic Call Features An icon appears on the touch screen. -> to disable announcement. Locking or Unlocking the Conference The organizer and presenters can lock a conference call to prevent other people from joining the conference call without approval. When a conference is unlocked, anyone can join a conference call automatically with the conference dial-in number and conference ID.
Page 140: Calendar
Other participants remain being connected. Calendar Yealink Skype for Business phones integrates with the Microsoft Exchange calendar feature. If your phone is configured to connect to the Microsoft Exchange Server, and the Microsoft® Outlook® application is installed at your site, you can view Skype conference, appointment, meeting and event, or join the Skype conference in your Microsoft Outlook application from your phone.
Page 141: Setting Up An Appointment In Outlook
Basic Call Features Setting up an Appointment in Outlook Appointments are blocks of time you schedule for only yourself (as opposed to meetings, which you invite others). An appointment has a specific start time and a specific end time (as opposed to an event, which occurs for one or more or full 24-hour periods).
Page 142: Setting Up An Event In Outlook
User Guide for the T48S Skype for Business phone Click Home ->New Meeting. Enter a subject, location, and then select the start and end time. Enter the content about the meeting. To add attendees, do one of the following: In the To box, add desired attendees. Click Scheduling Assistant to help you find the best time for your meeting by analyzing when attendees are available and then click Add Attendees to add attendees.
Page 143: Setting Up A Skype Conference In Outlook
Basic Call Features Click Home ->New Items->All Day Event. Enter a subject and location. Enter the content about the event. To show others your availability during this time, on the Appointment tab, click the Show As box and then click Free, Working Elsewhere, Tentative, Busy or Out of Office. Click Save &...
Page 144: Using The Calendar
User Guide for the T48S Skype for Business phone To set up a Skype conference in outlook: Open Outlook and go to your calendar. Click HOME ->New Skype Meeting. Enter a subject, location, and then select the start and end time. Enter the content about the Skype meeting.
Page 145 Basic Call Features Exchange calendar which gives you quick access to Skype conference, appointment, meeting and event. Viewing the Calendar To view the calendar via phone user interface: Tap Menu->Calendar. The calendar displays the schedules of today by default. You can view 2000 schedules at most on your T48S Skype for Business phone.
Page 146 User Guide for the T48S Skype for Business phone Name Description subject, start and end time and location. Shows the details of the selected schedule, including the Schedule view subject, participants, organizer, start and end time, location and content. to close the calendar and return to the idle screen. Navigating Year View Year view displays all the months in a year.
Page 147 Basic Call Features – to view the previous month. – to view the upcoming month. – Tap the day to select the desired day. – to close the calendar and return to the idle screen. Navigating Day View Day view shows all schedules of the selected day, including the date and time, subject, start and end time, and location of each schedule.
Page 148 User Guide for the T48S Skype for Business phone to view the schedule details. to return to the pervious screen or tap to return to the idle screen. Tracking the Calendar When an organizer schedules a Skype meeting via the Outlook software, the attendees can respond to the meeting request via Outlook software.
Page 149 Basic Call Features Tap a desired Skype meeting to view the details to return to the pervious screen or tap to return to the idle screen. Working with Schedule Reminders If you have a schedule, a reminder pop-up is displayed 15 minutes before it starts. The reminder shows the main information of the schedule, including subject, start time, end time and the rest time.
Page 150 User Guide for the T48S Skype for Business phone If you receive a Skype conference, tap the Join soft key to join the Skype conference.  Note When the phone is locked, you can tap Ignore or Snooze without unlocking the phone. But you need to unlock the phone to view detailed information and join the Skype conference.
Page 151 Basic Call Features The value ranges from 1 to 15 minutes, the default value is 5 minutes. to accept the change. Joining Skype Conferences from the Calendar You can join the Skype conferences from calendar in following three ways: Joining a Skype conference from a conference reminder (Once joined, presenter and ...
Page 152 User Guide for the T48S Skype for Business phone Joining a Skype Conference from a Conference Reminder To join a Skype conference from a conference reminder: Do one of the following: – Tap the Join soft key. – Tap the Detail soft key to view detail for a specific Skype conference, and then tap the Join soft key.
Page 153 Basic Call Features Tap a Skype conference to view specific information. Tap the Join soft key to join the Skype conference. Joining a Skype Conference by Dialing the Conference Dial-in Number If you schedule a Skype conference call via Microsoft Outlook Conferencing (Plug-In), dial-in number and Conference ID will be sent to invitees by email.
Page 154: Parking And Retrieving Calls On The Skype For Business Server
User Guide for the T48S Skype for Business phone To join a Skype conference by dialing the conference dial-in number: Dial the conference dial-in number (e.g., 15915). Enter the Conference ID (e.g., 230138), and the press to join the Skype conference. More participants can repeat steps 1-2 to join the Skype conference.
Page 155: Retrieving Parked Skype For Business Calls
Basic Call Features Retrieving Parked Skype for Business Calls Retrieve Parked Skype for Business Calls on the Same Phone: Retrieve Parked Skype for Business Calls on Another Phone: Dial the retrieval number (for example: #151). When someone retrieves the parked call, a notification notifying that the call was picked up by the person who parked the call.
Page 156: Shared Line Appearance(Sla)
User Guide for the T48S Skype for Business phone To use group pickup via phone user interface: Enter the group pickup code (e.g., #505) on your phone when a phone number in your group receives an incoming call. The call is answered on your phone. Shared Line Appearance(SLA) When your phone is registered with the Skype for Business Server, you can use the Shared Line Appearance (SLA) feature to share a single line with other contacts as a member of a group.
Page 157: Viewing Shared Line Appearances
Basic Call Features Viewing Shared Line Appearances When you (group member) sign into your phone, your phone notifies that you joined a SLA group, and a SLA screen appears automatically which display all shared line appearances: In the following figure, the phone screen of the SLA group member (yl576) display all shared line appearances.
Page 158: Answering Sla Calls
User Guide for the T48S Skype for Business phone Answering SLA Calls Any incoming call to the shared line rings on all group members' phones simultaneously. All members’ phones are shown below: Any group member can tap to answer an incoming call for the shared line. When a group member answers an incoming call, a red status bar will appear under the shared line appearance.
Page 159: Placing A Sla Call On Hold
Basic Call Features Placing a SLA Call on Hold To place a SLA call on hold: Press or tap to place the call on hold. All group members are notified of the call's hold status by a flashing red status bar under the shared line appearance on all members' phones.
Page 160: Missed And Received Calls On Shared Lines
User Guide for the T48S Skype for Business phone Missed and Received Calls on Shared Lines If all SLA group members do not answer an incoming call, the call is logged as missed calls on all the phones. If any SLA group member answers the incoming call, the call is logged as received calls on all the phones.
Page 161 Basic Call Features Select My Delegates from the pull-down list of Simultaneously ring. In the Delegates dialog box, click Add. Each delegate must be a Skype for Business contact. Click the Ring your delegates after this many seconds pull-down list to determine when your delegates' phones ring.
Page 162: Viewing The Delegates Group
User Guide for the T48S Skype for Business phone Make sure My Delegates option is not selected in either the Simultaneously ring or Forward my calls to list. Click Edit my delegate members. Check the checkbox of the delegate you want to remove. Click Remove.
Page 163: Viewing The Boss Group
Basic Call Features To view your delegates: Tap the Contacts soft key. Tap the Delegates group. Your delegate(s) will be displayed. Viewing the Boss Group You can view the contacts for which you are assigned as a delegate in the Bosses group on your phone and in the Skype for Business client.
Page 164: Delegates-Call Ringtone
User Guide for the T48S Skype for Business phone phone will play this ringtone. To set a ringtone for the boss’s line via phone user interface: Tap Menu->Setting->Basic->Sounds-> Ring Tones->Boss. Tap the desired boss. Tap the desired ringtone. to accept the change. Delegates-call Ringtone As a boss, you can set a distinct ringtone for incoming calls from your assigned delegate's line.
Page 165: Using The Boss-Admin Feature
Basic Call Features Using the Boss-Admin Feature Answering Incoming Calls When a user calls the boss, both boss’s and delegate’s phones will ring simultaneously. To answer an incoming call on a boss’s phone: or press The delegate’s phone stops ringing and the touch screen of the delegate’s phone is shown below: To answer an incoming call on a delegate’s phone: or press...
Page 166 User Guide for the T48S Skype for Business phone A red Boss/Admin soft key appears at the bottom of the delegate’s phone screen. To place a call on hold on a delegate’s phone: or press to place the call on hold. A red Boss/Admin soft key appears at the bottom of the boss’s phone screen.
Page 167 Basic Call Features Do one of the following: The delegate taps or presses to resume the held call. The boss taps the red Boss/Admin soft key to view the calls that are held by delegate. Tap the avatar of the caller. The call will be resumed by boss, and the delegate will drop the call automatically.
Page 168 User Guide for the T48S Skype for Business phone When the boss is not available to answer the transferred call or rejects the transferred call, the delegate’s phone displays as “Transfer failed”. The delegate can tap or press to resume the call. Placing a Call on Behalf of a Boss The delegate can make calls on behalf of his assigned boss’s lines.
Page 169 Basic Call Features The delegate and third-party phones display a notification indicating that a delegate is calling on behalf of a boss. Initiating a Conference Call on Behalf of a Boss The delegate can initiate a conference call on behalf of a boss’s line. To initiate a conference call on behalf of a boss’s line: Tap Contacts->Bosses.
Page 170 User Guide for the T48S Skype for Business phone The delegate will initiate a Skype for Business conference call on behalf of a boss’s line directly. to add more participants. Joining Conference Calls for a Boss The delegate can join an incoming conference call on behalf of a boss’s line and add the boss to the conference call.
Page 171: Voicemail
Basic Call Features Voicemail If your phone is configured to connect to the Microsoft Exchange Server, you can leave voicemails for someone else using the T48S Skype for Business phone. You can also listen to voice messages that are stored in a voicemail. When receiving a new voicemail, the phone will play a warning tone.
Page 172: Managing The Voicemail
User Guide for the T48S Skype for Business phone Tap the voicemail to leave a voicemail. Managing the Voicemail PIN Authentication When you sign into the phone via PIN Authentication method, you can follow the voice prompts to listen to voicemails. To listen to the voicemail when sign into the phone via PIN Authentication, do the following: When the phone prompts receiving a new voicemail and the power LED indicator glows...
Page 173 Basic Call Features Tap Menu->Voice Mail -> Follow the voice prompts to listen to your voicemails. Listening to the Voicemail To listen to the voicemail: Tap Menu->Voice Mail. to play the selected voicemail. You can also tap the desired voicemail, and then tap the Play Message soft key. Calling a Contact from Voicemail To call a contact from voicemail: Tap Menu->Voice Mail.
Page 174 User Guide for the T48S Skype for Business phone Tap the desired voicemail. to call the contact. Marking the Voicemail as Read or Unread The following icons indicate the status of the voicemail: Unread voicemail  Read voicemail  To mark the voicemail as read: Tap Menu->Message.
Page 175 Basic Call Features To mark the voicemail as unread: Tap Menu->Message. Tap the read voicemail. Tap the Mark as Unread soft key. The voicemail icon will change from Deleting the Voicemail To delete the voicemail: Tap Menu->Voice Mail. Tap the desired voicemail. Tap the Delete soft key.
Page 176 User Guide for the T48S Skype for Business phone...
Page 177: Advanced Phone Features
Advanced Phone Features Advanced Phone Features This chapter provides operating instructions for the advanced features of all phone. Topics include: E911  USB Recording  Intercom  Multicast Paging  Privacy Mode  Hot Desking  Common Area Phone  Branch Office Resiliency ...
Page 178 User Guide for the T48S Skype for Business phone Select desired value from the pull-down list of E911 Location Tip. If you select Enabled: When the location is not set, the touch screen will display a location tip. If you select Disabled: When the location is not set, the touch screen will not display a location tip.
Page 179: Adding The Location Information
Advanced Phone Features You can do one of the following: – Tap the Ignore soft key. When the parameter Location Required is set to Yes on the Skype for Business server, the phone will return to the idle screen. When the parameter Location Required is set to Disclaimer on the Skype for Business server, the phone will display the disclaimer configured on the Skype for Business server.
Page 180: Viewing The Location Information
User Guide for the T48S Skype for Business phone add a location manually on the phone, you can select one of them to be the default location. To select the default location via phone user interface: Do one of the following: –...
Page 181: Usb Recording
Advanced Phone Features the phone is locked. Keypad is available during an emergency call. To place an emergency call when the phone is locked: (Emerg Call soft key). Tap the desired emergency number. If call forward feature is configured in advance, the call forward feature will be disabled automatically after calling the emergency number.
Page 182 User Guide for the T48S Skype for Business phone If you insert a USB flash drive to the phone when the phone is idle, the phone will detect the USB flash drive and display a flashing USB icon. After detecting the USB flash drive, the icon stops flashing and a message will display on the screen: If you insert a USB flash drive to the phone during a call, a message will pop up to tell you how much time is available for recording.
Page 183: Recording A Call
Advanced Phone Features The Start REC soft key is not available when: You are placing a new call during a call  No free space of USB flash drive  The phone prompts you to answer an incoming call  You park the call ...
Page 184 User Guide for the T48S Skype for Business phone -> . Recording stops and a message is displayed on the screen You can tap -> to start recording again, the recording will be saved as a new “.wav” file. Press or tap while recording, recording is paused.
Page 185: Stop Recording A Call
Advanced Phone Features If there is insufficient free space (10 minutes left) on the USB flash drive during recording, a message will display on the screen: Tap the Cancel soft key to return to the previous screen. If no free space on the USB flash drive during recording, recording is stopped and saved on the USB flash drive automatically.
Page 186: Playing Back Recorded Calls
User Guide for the T48S Skype for Business phone The recording icon and recording duration disappears, and the phone returns to the Idle screen. A message is displayed on the touch screen: Playing Back Recorded Calls You can play back, browse and delete the recordings on your phone. Note You can play back the recorded calls on the phone or on a computer using an application capable of playing “.wav”...
Page 187: Deleting The Recording
Advanced Phone Features Tap the desired file or tap During the recording playback, you can do the following: Press the Speakerphone key, the HEADSET key, or pick up the handset to alternate among Speakerphone, Headset and Handset modes. Press the Volume key to adjust the volume of audio output. to pause the playback.
Page 188: Viewing The Storage Space
User Guide for the T48S Skype for Business phone to delete a desired file. Tap the OK soft key. Viewing the Storage Space You can view the storage space (for example, total space, used space, free space) of the USB flash drive on the phone.
Page 189: Configuring The Intercom
Advanced Phone Features Configuring the Intercom By default, the phone will automatically play a warning a tone and then automatically answer an incoming intercom call if an incoming intercom arrives. In addition, you can enable the phone to mute the microphone when it 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.
Page 190: Configuring The Target Extension Number
User Guide for the T48S Skype for Business phone Intercom Barge You can enable or disable the phone to automatically answer an incoming intercom call while there is already an active call on the phone. If Intercom Barge is enabled, the phone will automatically answer the intercom call and place the active call on hold.
Page 191 Advanced Phone Features (Optional.) Enter the string that will appear on the intercom list in the Label field. Enter the target extension number in the Value field. to accept the change. Repeat steps 2 to 6, you can add more target extension numbers. To delete a target extension number via phone user interface: Do one of the following to enter the intercom list: Tap Menu->Setting->Features->Intercom List.
Page 192: Placing An Intercom Call
User Guide for the T48S Skype for Business phone Placing an Intercom Call To place an intercom call via phone user interface: Do one of the following to enter the intercom list: When the phone is idle, tap or tap Menu->Setting->Features->Intercom List. During a call, tap ->...
Page 193: Sending Rtp Stream
Advanced Phone Features Sending RTP Stream To configure paging list via phone user interface: Tap Menu->Setting->Features->Paging List. Tap a desired paging group. The default tag is Empty if it is not configured before. Tap the Edit soft key. Enter the multicast IP address and port number (e.g., 224.5.6.20:10008) in the Address field.
Page 194: Receiving Rtp Stream
User Guide for the T48S Skype for Business phone The touch screen prompts “Delete selected paging group?”. Tap the OK soft key to accept the change. If you want to delete all paging groups, you can tap the Delete All soft key. Paging list is configurable via web user interface at the path Directory->Multicast IP.
Page 195: Using Multicast Paging
Advanced Phone Features To configure multicast listening addresses via web user interface: Click on Directory->Multicast IP. Select the desired value from the pull-down list of Paging Barge. Select the desired value from the pull-down list of Paging Priority Active. Enter the multicast IP address(es) and port number (e.g., 224.5.6.20:10008) which the phone listens to for incoming RTP multicast in the Listening Address field.
Page 196: Privacy Mode
User Guide for the T48S Skype for Business phone Select a desired paging group. Tap the Paging soft key or the desired paging group or press to send RTP. Both the sender’s and receiver’s phones play a warning tone and the receiver automatically answers the multicast RTP session in the speakerphone mode.
Page 197: Modifying The Privacy Mode From The Phone
Advanced Phone Features Only the contacts in my Skype for Business directory can see my presence. But my presence is offline for those contacts who are in my Microsoft Active Directory Domain. Modifying the Privacy Mode from the Phone To modify the privacy mode from the phone: Tap Menu->Setting->Features->Private Mode.
Page 198: Modifying The Privacy Mode From The Skype For Business Client
User Guide for the T48S Skype for Business phone Modifying the Privacy Mode from the Skype for Business Client To modify the privacy mode from the Skype for Business client: Open Skype for Business client. Click In the Skype for Business - Options dialog box, click Status. Do one of the following: If the privacy mode is disabled on the Skype for Business Server: Mark the desired radio box.
Page 199: Hot Desking
Advanced Phone Features If the privacy mode is enabled on the Skype for Business Server: Mark the desired radio box. Click OK to accept the change. Hot Desking Hot desking originates from the definition of being the temporary physical occupant of a work station or surface by a particular employee.
Page 200: Signing In As The Hot Desking User
User Guide for the T48S Skype for Business phone The feature is enabled by default. to accept the change. Note You can configure the hot desking feature on your phone only when your system administrator has enabled this feature for your account on the Skype for Business Server. Hot desking is configurable via web user interface at the path: Features->General Information->Hot Desking Enable.
Page 201: Signing Out From The Hot Desking User
Advanced Phone Features The phone is signed out from host user, and the Sign In screen displays: Select the desired sign-in method, and then enter your enter your login credentials. Tap Sign in. If your system administrator enables multi-factor authentication (MFA) feature for your online account, you should pass the MFA at the first sign-in.
Page 202: Common Area Phone
User Guide for the T48S Skype for Business phone Tap the OK soft key. The phone is signed out from hot desking user and signs in automatically with the host user account which has been signed in before. To sign out of a shared phone automatically: When the phone has been inactive for a designated time (this time is configured on the Skype for Business server), the phone will sign out of the guest profile automatically.
Page 203: Signing Into A Common Area Phone Account
Advanced Phone Features To enable the Common Area Phone feature via phone user interface: Tap Menu->Setting->Advanced (default password: admin)->Common Area Phone. Tap the On radio box of the Set As CAP field. to accept the change. This configuration will take effect after a reboot. Signing into a Common Area Phone Account You can use the following five sign-in methods to sign into a CAP.
Page 204 User Guide for the T48S Skype for Business phone After you sign into a CAP account, the idle screen is shown as below. Users can sign into their own Skype for Business account to use their own user profile settings by tapping User Sign In.
Page 205 Advanced Phone Features The touch screen will show the pairing code and URL. On your computer, enter the URL into your web browser. Enter your Online account (make sure it has permission to provision CAP accounts) and password. (Optional) Check the Keep me signed in checkbox, so that you don't need to enter a password next time.
Page 206: Signing Out Of A Common Area Phone
User Guide for the T48S Skype for Business phone The entry matches the characters entered will appear. Enter the pairing code generated on the phone (e.g.,prx4aekm7) into the web browser. 10. Click Provision. The phone will sign into this CAP account automatically. CAP Provisioning method is configurable via web user interface at the path: Account->Register->CAP Provisioning.
Page 207: Branch Office Resiliency
Advanced Phone Features Tap the On radio box of the Sign Out field. The touch screen will prompt “Are you sure to sign out?”. Tap the OK soft key. The current CAP account will sign out. Branch Office Resiliency If you sign into the phone using On-Premises account, you can use branch office resiliency feature.
Page 208: Better Together Over Ethernet
Skype for Business client. You can also use BToE to sign into your phone using your Skype for Business credentials. In order to use BToE, you need to download and install the Yealink BToE Connector application first.
Page 209 Advanced Phone Features Ask the Yealink FAE or reseller for the BToE Connector application, or download it online: http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage To install the Yealink BToE Connector on your PC: Unzip the downloaded file. Double click the installation application Yealink BToE Connector for Lync.msi.
Page 210 Mark the radio box of the I accept the terms in the License Agreement field, and then click Next to continue. 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\. Click Next to continue.
Page 211 Advanced Phone Features A dialog is displayed as below during installation: Click Yes. The installation may take several minutes. A status bar showing the Yealink BToE Connector installation’s progress is displayed as below:...
Page 212 After the software has installed, a dialog is displayed as below: The checkbox of Launch Yealink BToE Connector is checked by default, as shown above. If the checkbox of Launch Yealink BToE Connector is not checked, you need to launch the Yealink BToE Connector manually.
Page 213: Pairing Your Phone With Your Computer
If you uncheck the Wired checkbox, you can click ResetIP to clear the current IP address, and then enter the IP address of your phone manually. Click Export Log(C) to export the log file of Yealink BToE Connector, and then save the ...
Page 214 User Guide for the T48S Skype for Business phone Ensure that the Yealink BToE Connector application is running on your PC. To pair your phone with your Skype for Business client, do one of the following on your PC: Connect an Ethernet cable from your computer to the PC port on your phone (network of the PC will be provided by the PC port of the phone).
Page 215 Advanced Phone Features If BToE Pairing Mode is Manual, a six-digit pairing code displays. You should enter the six-digit pairing code shown on the phone into the notification on your computer. (A six-digit pairing code displays on your phone) (Enter the pairing code shown on the phone into the notification on your computer) If your PC is not connected to the PC port on your phone using an Ethernet cable, do the following: Uncheck the Wired checkbox.
Page 216: Setting Your Phone As The Default Audio Playback For Your Computer
User Guide for the T48S Skype for Business phone client directly. If BToE Pairing Mode is Manual, a six-digit pairing code displays. You should enter the six-digit pairing code shown on the phone into the notification on your computer. BToE is configurable via web user interface at the path: Settings->BToE. Pairing Status You can view the pairing status via phone user interface or computer: Unpaired (Not signed in): Your phone and your computer are not paired.
Page 217: Enabling Better Together Over Ethernet
Advanced Phone Features To set the phone as the default audio playback for your computer: On your computer, click Start->Control Panel->Hardware and Sound->Sound. Click Yealink USB Audio Playback, and click Set Default. Click OK. To use your phone as primary audio device:...
Page 218 User Guide for the T48S Skype for Business phone There are two ways to active BToE: You can sign in the same user account on your Skype for Business client and your phone  manually. You can sign into the phone via PC. ...
Page 219: Using Better Together Over Ethernet
Select your phone as your primary device, as shown below. Note If Yealink SIP-T48S Phone is not selected as audio device, you will not be able to use BToE feature (for example, calls made on the Skype for Business client will not be displayed on the phone).
Page 220 User Guide for the T48S Skype for Business phone Answering BToE Calls When you receive an incoming call, the incoming call information is displayed on your phone and your Skype for Business client. Do one of the following: or press on your phone.
Page 221 Advanced Phone Features Using BToE to Lock and Unlock Your Phone When your phone is paired with your computer and phone lock is enabled, the phone will be locked or unlocked automatically when you lock or unlock your computer by default. To configure phone lock with PC via phone user interface: Tap Menu->Setting->Basic->Phone Lock->Phone Lock with PC.
Page 222: Disabling Btoe On Your Phone
Exiting BToE on Your Computer You can exit the Yealink BToE Connector at any time. When you exit the application, you can no longer use the BToE functions on your phone or computer. To exit BToE on your computer: Right-click BToE icon ( ) in the system tray and click Exit(E).
Page 223: Using Optional Accessories With Your Phone
 Expansion Module EXP40  You need to purchase them separately if required. We recommend that you use the accessories provided or approved by Yealink. The use of Note unapproved third-party accessories may reduce the performance. Using a Headset You can connect an analog or USB headset to your phone and use the headset to place and answer calls.
Page 224 Simply insert the modular connector into the headset port on the back of your phone. For the information on how to connect headset YHS32/YHS33, refer to the user guide on Yealink Technical Support the specific headset's support page on If both a Bluetooth headset and an analog headset are connected, only the Bluetooth headset Note can be used.
Page 225 Using Optional Accessories with Your Phone Select Enabled from the pull-down list of Headset Prior. Click Confirm. Note If headset prior is enabled, the headset mode will not be deactivated until you press the HEADSET key again. If headset prior is disabled, the headset mode can be deactivated by pressing the Speakerphone key or the HEADSET key.
Page 226: Using The Wireless Headset Adapter Ehs36
Sennheiser/Jabra (GN Netcom) or Plantronics headset. For more information on how to connect EHS36, see the EHS36 User Guide on the wireless Yealink Technical Support headset adapter’s support page on After the EHS36 and your headset are connected successfully, you can use the control unit on your headset to handle calls.
Page 227: Connecting The Bluetooth Usb Dongle Bt40
Insert the USB dongle with “TOP” facing upwards into the USB port on the back of the phone. For more information on Bluetooth USB dongle BT40, see the user guide on the Bluetooth USB Yealink Technical Support dongle BT40’s support page on...
Page 228: Deactivating The Bluetooth Mode
User Guide for the T48S Skype for Business phone Tap On radio box of the Bluetooth field. Bluetooth mode is configurable via web user interface at the path Features->Bluetooth. Deactivating the Bluetooth Mode To deactivate the Bluetooth mode via phone user interface: Tap Menu->Setting->Basic->Bluetooth.
Page 229 Using Optional Accessories with Your Phone sure that the Bluetooth headset is discoverable. For more information, refer to the documentation from the Bluetooth headset manufacturer. To pair and connect your Bluetooth headset to your phone: Tap Menu->Setting->Basic->Bluetooth. Tap the Bluetooth device to connect the Bluetooth headset to your phone. If there is no Bluetooth device available on the touch screen, tap to search for the Bluetooth device again.
Page 230: Viewing The Bluetooth Headset Information
User Guide for the T48S Skype for Business phone Viewing the Bluetooth headset information To view the Bluetooth headset information: Tap Menu->Setting->Basic->Bluetooth. Tap the On radio box of the Bluetooth field. The touch screen displays a list of Bluetooth headsets. You can view the Bluetooth headset information from the Bluetooth devices field.
Page 231: Deleting The Paired Bluetooth Headset
Using Optional Accessories with Your Phone The default device name is “Yealink T48S”. to accept the change. The preconfigured Bluetooth device name will display in scanning list of other device. Deleting the Paired Bluetooth Headset You can delete your Bluetooth headset from your phone. When you delete the Bluetooth headset, it disappears from the Paired Bluetooth Device list.
Page 232: Disconnecting The Bluetooth Headset
Wi-Fi mode is configurable via web user interface at the path Network->Wi-Fi. Connecting the Wi-Fi USB Dongle WF40 Insert the Wi-Fi USB Dongle WF40 into the USB port on the back of the phone. Yealink For more information on WF40, see the Wi-Fi USB dongle WF40 user guide on Technical Support...
Page 233: Activating The Wi-Fi Mode
Using Optional Accessories with Your Phone Activating the Wi-Fi Mode When Wi-Fi USB dongle WF40 is connected to the USB port on the back of the IP phone, a message will display on the touch screen: You can tap OK to activate Wi-Fi mode directly and scan Wi-Fi devices automatically. If you tap Cancel, you can activate Wi-Fi mode manually when you want to use the Wi-Fi feature.
Page 234 User Guide for the T48S Skype for Business phone Wi-Fi Protected Setup (WPS)  Manually add a wireless network  Connecting to an Available Wireless Network Manually To connect to a wireless network via phone user interface manually: Tap Menu->Setting->Basic->Wi-Fi. Activate the Wi-Fi mode (refer to Activating the Wi-Fi Mode).
Page 235 (SSID) and strong WPA data encryption and authentication. Two methods supported by Yealink IP phones in the Wi-Fi protected setup: Push Button Configuration (PBC): The user simply presses WPS key on both the IP ...
Page 236: Viewing The Wireless Network Information
User Guide for the T48S Skype for Business phone To add a wireless network: Tap Menu->Setting->Basic->Wi-Fi. Activate the Wi-Fi mode (refer to Activating the Wi-Fi Mode). Tap the Add soft key. Use the WLAN settings obtained from your gateway/router to configure this WLAN Profile on the IP phone.
Page 237: Managing The Saved Wireless Network
Using Optional Accessories with Your Phone If the IP phone is connected to a wireless network successfully, you can also tap Menu->Setting->Basic->Wi-Fi->Wireless Status to view the connected wireless network information. Managing the Saved Wireless Network Once the IP phone has ever been connected to a wireless network successfully, this wireless network profile will be saved in Known Network(s) list.
Page 238: Disconnecting The Wireless Network Connection
User Guide for the T48S Skype for Business phone Select Edit. Edit the desired wireless network information. to accept the change. To change the priority of the wireless network: Select Move Up or Move Down to assign higher or lower priority of the wireless network that the IP phone automatically connects to.
Page 239: Using An Exp40 Expansion Module
Using Optional Accessories with Your Phone Using an EXP40 Expansion Module The Yealink EXP40 is ideal for receptionists, administrative assistants, call center agents, power- users, and executives who need to place a large volume of calls on a regular basis. When your...
Page 240 User Guide for the T48S Skype for Business phone...
Page 241: Troubleshooting
Troubleshooting Troubleshooting This chapter provides general troubleshooting information to help you solve the problems you might encounter when using your T48S Skype for Business phone. For more information or assistance with your new phone, contact your system administrator. Troubleshooting Solutions Why is the touch screen blank? Ensure that the phone is properly plugged into a functional AC outlet.
Page 242 If you sign in successfully after you disable this feature, you need to manually upload the certificate and then enable the Only Accept Trusted Certificates feature to try again. How to check if the application driver of the Yealink BToE Connector is installed on the Do one of the following: –...
Page 243 After reboot, if the phone still cannot pair with the Skype for Business client, uninstall the  Yealink BToE Connector and application driver, and then reinstall them. Ensure that Yealink BToE Connector is an allowed program in your system’s firewall on  your PC.
Page 244 User Guide for the T48S Skype for Business phone isolate the problem. Why doesn’t the phone ring? Check the ringer volume on the phone. To adjust the ringer volume setting, press the Volume key when the phone is on-hook and idle. For more information, refer to Volume on page 79.
Page 245 Troubleshooting Enter the desired time in the Play Hold Tone Delay field. Click Confirm to accept the change. How to export/import the phone configurations? We may need you to export the phone configurations to help analyze problem. In some instances, you may need to import configurations to your phone. To export the phone configurations via web user interface: Click on Settings->Configuration.
Page 246 User Guide for the T48S Skype for Business phone Export All Diagnostic Files Your system administrator may ask you to export all diagnostic files to analyze your phone problem. To export all diagnostic files via web user interface: Click on Settings->Configuration. Click Start in the Export All Diagnostic Files field to begin capturing signal traffic.
Page 247 Troubleshooting Click Export to open file download window, and then save the file to your local system. How to change the user password? To change the user password via web user interface: Click on Security->Password. Select User from the pull-down list of User Type. Enter the new user password in the New Password field and Confirm Password field.
Page 248 User Guide for the T48S Skype for Business phone Tap Reboot. The touch screen prompts “Reboot the phone?”. Tap the OK soft key to reboot the phone. Note You can long press to reboot the phone Any reboot of your phone may take a few minutes. How to upgrade firmware? To upgrade firmware via web user interface: Click on Settings->Upgrade.
Page 249 Troubleshooting Click Browse… to locate the firmware from your local system. Click Upgrade to upgrade the firmware. The browser pops up the dialog box “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.
Page 250 User Guide for the T48S Skype for Business phone Tap Reset to factory. The touch screen prompts the following warning: Tap the OK soft key. The phone begins resetting. After reset, the touch screen prompts “Welcom Initializing…Please wait”. The phone will be reset to factory sucessfully after startup. Note You can also long press the soft key to perform the full reset function when the phone is...
Page 251: 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 252 User Guide for the T48S Skype for Business phone 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 dissipation. ...
Page 253: Appendix A - Time Zones
Appendix A-Time Zones Appendix A - Time Zones Time Zone Time Zone Name Samoa United States-Hawaii-Aleutian, United States-Alaska-Aleutian -9:30 French Polynesia United States-Alaska Time Canada(Vancouver,Whitehorse), Mexico(Tijuana,Mexicali), United States-Pacific Time Canada(Edmonton,Calgary), Mexico(Mazatlan,Chihuahua), United States-MST no DST, United States-Mountain Time Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, Belize, Canada-Manitoba(Winnipeg), Chile(Easter Islands), Mexico(Mexico City,Acapulco), United States-Central Time Peru, Bahamas(Nassau), Canada(Montreal,Ottawa,Quebec),...
Page 254 User Guide for the T48S Skype for Business phone Time Zone Time Zone Name Australia(Brisbane), Australia(Hobart), Australia(Sydney,Melboume,Canberra), Russia(Vladivostok) +10:30 Australia(Lord Howe Islands) New Caledonia(Noumea), Russia(Srednekolymsk Time) +11:30 Norfolk Island New Zealand(Wellington,Auckland), Russia(Kamchatka Time) +12:45 New Zealand(Chatham Islands) Tonga(Nukualofa) +13:30 Chatham Islands Kiribati...

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T48s skype for business

Yealink T48S Skype For Business Edition User Manual

Table of Contents

Overview

Getting Started

Customizing Your Phone

Basic Call Features

Advanced Phone Features

Using Optional Accessories with Your Phone

Troubleshooting

Regulatory Notices

Appendix A - Time Zones

Quick Links

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Questions and answers

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Summary of Contents for Yealink T48S Skype For Business Edition