Yealink Yealink SIP-T48G User manual

Quick Start Guide
www.yealink.com Applies to firmware version 35.8.0.21 or later.
(V8.21)
SIP-T48G IP Phone
Microsoft® ™
Skype for Business Edition

Packaging Contents
Packaging Contents
Assembling the Phone
The following items are included in your package. If you find anything missing, contact your system administrator.
Stand
Handset Cord
Handset
IP Phone
Ethernet Cable
Wall Mount BracketPower Adapter
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（Optional）（Optional）
Quick Start Guide
The two wall mount slots are plugged up by
silica gels. You can pull out the silica gels when
mounting your IP phone to a wall.
1.Attach the stand,as shown below:
Note: For more information on how to mount the IP phone to a wall, refer to Yealink Wall Mount Quick Installation
Guide for Yealink IP Phones.
Desk Mount Method
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Note: We recommend that you use the accessories provided or approved by Yealink. The use of
unapproved third-party accessories may result in reduced performance.
Note: The headset, Bluetooth USB dongle BT40 or wireless headset adapter EHS36 should be purchased separately.
The EXT port can also be used to connect the expansion module EXP40. For more information on how to use
the EHS36, EXP40 and BT40, refer to Yealink EHS36 User Guide, Yealink SIP-T48G Microsoft Skype for
Business Edition User Guide and Yealink Bluetooth USB Dongle BT40 User Guide.
1
Bluetooth USB Dongle BT40
Wireless Headset Adapter EHS36
2. Connect the handset and optional headset, as shown below:

2
A
B
AC Power Option
PoE ( Power over
Ethernet ) Option
PC Connection
(Optional)
Power Adapter
(DC 5V)
PC Connection
(Optional)
IEEE 802.3af compliant
PoE Hub/Switch
Welcome
Initializing... Please wait
Startup
3. Connect the network and power, as shown below :
You have two options for network and power connections. Your system administrator will advise you which one to use.
Note: The IP phone should be used with Yealink original power adapter (5V/2A) only. The use of the third-party
power adapter may cause the damage to the phone.
After the IP phone is connected to the network and supplied
with power, it automatically begins the initialization process.
After startup, the sign-in screen appears on the phone touch
screen. Refer to Sign-in on page 3to sign into the Skype for
Business Server.
If inline power (PoE) is provided, you don’t need to connect the power adapter. Make sure the hub/switch is
PoE-compliant.

3
The sign-in screen displays the first time your phone connects to the network. You can sign into Skype for Business
Server using PIN Sign in, User Sign in or Device Pairing for Online method.
To sign into the Skype for Business Server:
1. Select desired sign-in method from the pull-down list of Login Type field.
If the Skype for Business Server is configured to forcibly lock the phone. You need to configure an unlock PIN at the
initial sign-in.
(Green and white) Available (Red) Busy (Red and white) DND
(Yellow and white) Be Right Back\Off Work\Away(Grey) Off Line
Sign-in
Note: Make sure the network connection is correct before login. By default, the phone attempts to contact a DHCP
server in your network to obtain its valid network settings. Contact your system administrator for more
information.
Note: Contact your system administrator if any error appears during the sign-in process or if a specific configuration
is required.
To sign out of the Skype for Business Server:
1. Tap your avatar at the top-right corner of the touch screen.
2. Tap Sign out from the pull-down list of status.
Change Presence Status
1. Tap your avatar at the top-right corner of the touch screen.
Your presence status is constantly updated by the Skype for Business Server. The presence status on the phone is
synchronized with the Skype for Business Server. You can manually change your presence status on the phone.
2. Tap the desired status from the pull-down list.
Presence Status Icons on the LCD Screen:
You can tap Reset Status to reset the presence status to “Available”.
a. If you select PIN Sign in (Only applicable to Onprem account):
b. If you select User Sign in (Applicable to Onprem account and Online account):
c. If you select Device Pairing for Online (Only applicable to Online account):
2) Tap Sign in.
1) Enter the extension and PIN in the corresponding field. If Remember Password is enabled, the PIN will be filled
automatically when you enter the extension next time.
2) Tap Sign in.
1) Enter the user’s sign-in address, name and password in the corresponding field. If Remember Password is enabled,
the user name and password will be filled automatically when you enter the sign-in address next time.
2) Enter the URL in the address bar of the web browser on your PC, and then press Enter.
3) Enter your email address to check its validity. If your email address passes validation, enter your Online
account and password, and then enter the pairing code to pair with the phone. The phone will sign into the
Skype for Business Server automatically.
1) Select the desired country, and then tap Sign in, the LCD screen will show the pairing code and URL.

Navigating the Touch Screen
To enter the main menu, tap .
To turn pages, press or ,tap or on the touch screen.
To select an item, tap the item.
To scroll through values in a pull-down list, press or .
To go back to the previous menu, tap .
To select a soft key, tap the soft key.
Using Your Phone
Entering and Updating Data
Using the phone keypad to enter data:
1. Tap the field you want to edit.
3. Enter data using the onscreen keyboard.
Using the onscreen keyboard to enter data:
1. Tap the field you want to edit.
2. Tap &123 or to change the input modes.
If you are using the handset, pick up the handset or tap .
If you are using the headset, press or tap .
Ending a Call
Note: You can reject an incoming call by tapping .
Redial
Press to enter the Placed list, tap the desired entry to view more details, and then tap or press to redial.
Placing a Call
Basic Call Features
If you are using the speakerphone, press or tap .
If you are using the handset, hang up the handset or tap .
If you are using the headset, tap .
If you are using the speakerphone, Press or tap .
Answering a Call
If you are using the handset, pick up the handset.
If you are using the headset, with the headset connected, press to activate the headset mode.
If you are using the speakerphone, with the handset on-hook, press .
2. Enter the number, and then press on the phone or tap or on the onscreen keyboard.
Press twice when the phone is idle to dial out the last dialed number.
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Note: During a call, you can alternate between the headset, hands-free speakerphone and handset modes by pressing
the HEADSET key, the Speakerphone key or by picking up the handset. Headset mode requires a connected headset.
2. Tap or abc soft key to change the input modes.
3. Enter data using the keypad.
4. Tap .
1. Do one of the following:

Blind Transfer:
Call Transfer
You can transfer a call in the following ways:
1. Press or tap during an active call. The call is placed on hold.
3. Press or tap .
2. Enter the number or tap the desired contact from the desired group you want to transfer to.
Attended Transfer:
1. Tap during an active call. The call is placed on hold.
3. Press or tap when the second party answers.
You can also tap the avatar of the desired contact in the Favorites screen.
2. Enter the number or tap the desired contact from the desired group you want to transfer to, then press or
tap .
Call Forward
To enable call forward:
1. When the phone is idle, tap ->Features->Call Forward, or you can also press to enter the call forward setting
screen.
2. Tap the On radio box of the Call Forward field.
3. Do one of the following:
a. Select Forward to Voice Mail.
b. Select Forward Calls to Number.
Enter a phone number that you want to forward incoming calls to, then tap , or enter the first few continuous
characters of the contact name or the contact number, tap the desired entry from the result list, and then tap
or press .
Incoming calls will be forwarded to voice mail automatically.
Incoming calls will be forwarded to the preset number automatically.
c. Select Simultaneously Call.
Enter a phone number that you want to ring simultaneously, then tap , or enter the first few continuous
characters of the contact name or the contact number, tap the desired entry from the result list, and then tap
or press .
If there is more than one call on hold, tap the call you want to resume, and then press or tap .
Call Mute and Un-mute
Call Hold and Resume
To place a call on hold:
To resume the call, do one of the following:
Press to mute the microphone during a call.
Press
If there is only one call on hold, press or tap .
1. Press or tap during an active call.
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You can also tap the avatar of the desired contact in the Favorites screen.
The preset number will ring simultaneously when the phone receives an incoming call.
4. Tap or press .
To disable call forward:
1. When the phone is idle, tap ->Features->Call Forward, or you can also press to enter the call forward setting
screen.
again to un-mute the call.

Skype for Business Conference
Voice Mail
When receiving a new voice mail, the phone will play a warning tone, and the power LED will slowly flashing red.
A number icon (indicating the number of voice mails you haven’t retrieved) appears on the right of the Message menu.
1. Tap ->Message.
Call History
Customizing Your Phone
Phone Features
Tap to enter the Message Center.
1. Tap ->Message.
2. Follow the voice prompts to listen to the voice mail.
2. Tap the Off radio box of the Call Forward field.
3. Tap or press .
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2. Do one of the following:
Tap to place a call.
2. Tap the avatar of the desired entry to view detailed information about the entry, you can also do one of the
following:
1. Press when the phone is idle, tap the desired list.
When you sign into the phone using User Sign in/Device Pairing for Online method:
Tap the desired voice mail, and then tap Play Message to listen to the selected voice mail.
When you sign into the phone using PIN Sign in method:
Tap the desired voice mail, and then tap Mark As Read to mark the unread voice mail as read.
Tap to redial the one who leaves the voice mail.
Note: You can follow the voice prompts to listen to the voice mail by pressing .
1. Tap to forward an incoming call to voice mail directly.
To forward an incoming call to the voice mail dynamically:
1. Tap when the phone receives an incoming call.
.
2. Do one of the following:
To forward an incoming call to a number dynamically:
Tap the avatar of the desired contact in Favorites screen.
Enter the number you want to forward the incoming call to, and then tap or tap on the onscreen
keyboard.
To initiate a Skype for Business conference call from the phone:
1. Press ->Meet Now to initiate a Skype for Business conference call directly.
2. Tap to invite a new party.
3. Enter the desired number, and then press , or tap .
4. Repeat the steps 2-3 to add more parties to the conference.
5. During the Skype for Business conference, you can hold the conference, view the conference participants, mute
or unmute the participants, promote or demote conference participants, remove conference participants, enable or
disable the announcement, lock or unlock the conference and view the dial-in number and conference ID.
The new party answers the call to join the conference automatically.

3. Click the desired group.
The contact is added to the selected group.
To add a local contact:
1. Tap ->Local Directory->All.
If you want to add the Skype for Business contacts as favorites, do the following:
1. Right-click the avatar of contact.
2. Click Add to Favorites.
Local Directory
2. Tap .
The contact will be added to the phone in Favorites screen.
Local Favorites
To edit a local contact:
To delete a local contact:
3. Tap the Edit soft key.
3. Enter a unique contact name in the Name field and other information in the corresponding fields.
2. Tap the avatar of the desired contact.
4. Tap the desired field to edit the contact information.
3. Enter a unique contact name in the Name field and other information in the corresponding fields.
4. Tap or press to accept the change.
1. Tap ->Local Directory->All.
5. Tap or press to accept the change.
1. Tap ->Local Directory->All.
3. Tap the Delete soft key.
2. Tap the avatar of the desired contact.
4. Tap or press to accept the change.
1. Tap ->Local Directory->Favorites.
2. Tap .
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Local favorites are the contacts in your local directory that you call most often.
To add a local favorite via phone user interface:
Directory
Skype for Business Directory
To add a Skype for Business contact:
1. Open your Skype for Business client, and then enter the number of the desired contact in the Search field.
2. Right-click the avatar of a contact, and then click Add to Contacts List.
The directory list displays Skype for Business directory (e.g., Favorites, Other Contacts) and local directory. You can
only manage Skype for Business directory through the Skype for Business client and manage the local directory on
the phone.
Tap the Delete soft key to delete the entry from the list.
4. Tap Select the index number from the pull-down list of Index.
Local favorites display consecutively, according to their index number. The contact with the lowest number
displays first. If you select Null from the pull-down list of Index, the contact displays first. Contacts that have a favorite
index number will display .

Using the Calendar
1. Tap ->Calendar.
The phone displays a conference reminder 15 minutes before a schedule starts.
Tap the Ignore soft key to permanently remove the reminder and stop reminding.
Tap the Snooze soft key to temporarily remove the reminder, until the next schedule reminder. The reminder will
appear every 5 minutes before the schedule starts.
Tap the Detail soft key to view details of the specific schedule.
If you receive a Skype conference reminder, tap the Join soft key to join the Skype conference.
2. Tap the desired month and day.
Boss-Admin
2. In your Skype for Business client, click , and then click Call Forwarding Settings.
4. Select My Delegates from the pull-down list of Simultaneously ring.
3. Mark the radio box of Simultaneously ring.
5. In the Delegates dialog box, click Add and select the desired delegates from the Choose a Delegate dialog box.
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The Boss-Admin feature enables a boss to assign delegates to manage boss’s incoming call. A “boss” and a “delegate”
phone will ring simultaneously when a user calls the boss.
To assign delegates in the Skype for Business client:
To view the calendar:
Schedule reminder
3. Tap the desired schedule to view details of the specific schedule.
To search for contacts:
1. In the dialing screen, enter the first few continuous characters of the contact name or the contact number (e.g.,
press the digit key 5 to search the letter “5, j, k and l”).
Whose name or phone number matches the characters entered will appear on the LCD screen.
5. Tap or press to accept the change.
Volume Adjustment
Press during a call to adjust the receiver volume of the handset/speakerphone/headset.
Press to adjust the ringer volume when the phone is idle or ringing.
1. Tap ->Bosses.
To view a list of bosses on your phone:
1. Tap ->Delegates.
To view a list of delegates on your phone:
1. Press or tap when the boss receives a call, the boss’s phone stops ringing.
The delegate answers an incoming call for a delegate’s phone:
The boss answers an incoming call for a boss’s phone:
1. Press or tap when the boss receive a call, the delegate’s phone stops ringing.
To use the calendar feature on your phone, you must sign into the phone using User Sign in or Device Pairing for Online
method. When you set up Skype conferences, appointments, meetings, events, or receive conferences invitation in
Outlook® application, your phone will display all schedules in the Calendar menu.
1. Open Skype for Business client, and then sign into Skype for Business client as the person who wants to assign
a delegate.

Tap when the phone is ringing.
1. Tap -> during a call. The call is placed on hold.
Note: If the boss is not available to answer the transferred call or rejects the transferred call, the delegate’s phone
Tap ->Bosses.
1.
2. Tap the avatar of the desired boss.
4. Tap the desired contact or enter the desired number.
1. Tap to join an incoming conference call.
2. If you want to invite the boss’s line to the conference, tap .
3. Tap the OK soft key to send the invitation.
Tap -> after the delegate answers the call.
When the boss joins the conference call, the delegate can choose to continue or leave the conference.
3. Tap the On behalf soft key.
5. Press or tap .
The call displays as “Calling On behalf of” boss’s line on the delegate and third-party’s phones.
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displays as “Transfer failed” and the delegate can resume the call.
The delegates makes a safe transfer to a boss’s line:
The delegate resumes a call held by a boss:
1. Tap the Boss/Admin soft key to view the calls that are held by the boss.
2. Tap the avatar of the caller to resume the held call.
The delegate transfers a delegation call to the boss’s voice mail, do one of the following:
The delegate places a call on behalf of an assigned boss:
The delegate adds a boss’s line to a Skype for Business conference call:
1. During a call, the boss presses or taps to place the call on hold. A red Boss/Admin soft key appears at the
bottom left corner of the boss’s phone screen.
1. Tap the Boss/Admin soft key to view the calls that are held by the delegate.
2. Tap the avatar of the caller to resume the held call.
The boss places a call on hold on a boss’s phone:
The delegate places a call on hold on a delegate’s phone:
1. During a call, the delegate presses or taps to place the call on hold. A red Boss/Admin soft key appears at
the bottom left corner of the delegate’s phone screen.
The boss resumes a call held by a delegate:
Common Area Phone
Common area phone is the IP phone that is not associated with an individual user. It is typically located in some places
where a large number of people are likely to gather. Common area phone supports the basic call features, including
placing a call, answering a call, placing a call on hold, resuming a held call, muting or unmuting a call and ending a
call like a regular phone. To use the common area phone, you must sign into the phone using the PIN Sign in or Device
Pairing for Online method.
To switch a CAP account to a Skype for Business account:
1. Tap ->User Sign in when the phone is idle.
3. Refer to Sign-in on page 3to sign into your Skype for Business account.
2. Tap the desired sign-in method from the pull-down list of Login Type field.
No matter whether you sign out of the Skype for Business account, the phone will sign into the last CAP account
automatically after a period of time.

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Click , and then click in the Skype for Business client.
To hold a call, do one of the following:
To place a call, do one of the following:
Hover your cursor over the avatar of the contact, and then click in the Skype for Business client.
To answer a call, do one of the following:
Click in the Skype for Business client.
Using Better Together over Ethernet (BToE)
To change the audio device during a call in the Skype for Business client:
Click , and then click in the Skype for Business client.
1. Click , and then click to change the audio device.
To resume a call, do one of the following:
Select a contact or enter the phone number, and then tap , or you can tap the avatar of the contact in Favorites
screen.
Tap on your phone.
Tap on your phone.
Tap on your phone.
To sign out of a common area phone:
1. Tap ->Advanced (admin or the unlock PIN)->CAP Sign Out.
2. Mark the On radio box in the Sign Out field.
Better Together over Ethernet (BToE)
When you have enabled BToE to work with your SIP-T48G IP phone, you can place, answer, hold and resume calls
on your phone and in the Skype for Business client. You can also change the audio device between your computer
and phone in the Skype for Business client.
3. Enter the pairing code (default PIN: 0000) in the BTOE Pairing Pin filed.
4. Tap the Save soft key.
To set BToE feature via phone user interface:
1. Press ->Advanced (default password: admin) ->BToE.
2 Tap the gray box of the BToE field, and then select Enabled from the pull-down list of BToE.
2. If connect your PC to the PC port on IP phone using an Ethernet cable, the IP address of your phone will be filled
automatically. If your computer is not connected to the PC port on the phone, you need to enter the IP address
manually.
3. Enter the corresponding PIN (default PIN: 0000) in the PIN field.
4. Click Pair.
If the phone is not signed in, enter the password in the pop-up dialog box on your PC, and then click OK.
If the Skype for Business client and phone are signed in by different accounts, right-click on , and then select
Sign in by Lync(L), enter the password in the pop-up dialog box on your PC, and then click OK.
If the Skype for Business client and phone are signed in by the same account, the phone is connected to the
Skype for Business server automatically.
To pair your phone with Skype for Business client:
1. Sign into your Skype for Business client.

About us
Founded in 2001, Yealink, a leading provider of VoIP Phone and IP communication solutions, has been focusing on VoIP
products characterized by reliable quality, easy deployment and affordable price for more than a decade. Today, customers from
over 140 countries rely on Yealink as the backbone of global collaboration to extend the value of network communications.
More about Yealink
Since 2001, Yealink has continued to develop state-of-the art, hi-tech VoIP communication terminals that include IP video
phones, IP phones and USB phones. With a worldwide market in more than 140 countries, the company has also established
a first-class international service network.
Our priorities are quality, functionality, ease-of-use, customer support and competitive pricing. To provide new solutions for the
future in this fast-evolving sector, Yealink’s large, talented and highly-experienced VoIP R&D team is totally committed to the
pursuit of excellence.
To date, we have passed more than 80 interoperability tests and meet certification requirements set by leading VoIP system and
platforms. Yealink works in close partnership with T-Mobile, Telefonica, Portugal Telecom and other leading telecommunication
service providers.
YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD.
Web: www.yealink.com
Addr: 309, 3th Floor, No.16, Yun Ding North Road, Huli
District, Xiamen City, Fujian, P.R. China
Copyright
©2016Yealink Inc.All right reserved.