YEALINK T48S Ultra-elegant IP Phone User Manual Yealink SIP T48S Quick Start Guide V81 1

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Document ID	3161324
Application ID	jz9tJyC8WfxsrYNySB3NcQ==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	190.6kB (2382524 bits)
Date Submitted	2016-10-12 00:00:00
Date Available	2016-10-12 00:00:00
Creation Date	2016-08-04 16:04:19
Producing Software	Adobe PDF library 10.01
Document Lastmod	2016-10-10 09:41:21
Document Title	Yealink_SIP-T48S_Quick_Start_Guide_V81_1
Document Creator	Adobe Illustrator CS6 (Windows)

Ultra-elegant Gigabit IP Phone
SIP-T48S
Quick Start Guide (V81.1)
www.yealink.com
Packaging Contents
The following items are included in your package. If you find anything missing, contact your system administrator.
Handset Cord
Ethernet Cable
Stand
Quick Start Guide
Power Adapter
（Optional）
Wall Mount Bracket
（Optional）
T48S
IP Phone
Handset
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.
Assembling the Phone
1. Attach the stand, as shown below:
Desk Mount Method
45
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.
Note: You can also mount the phone to a wall. For more information on how to attach the wall mount bracket, refer
to Yealink Wall Mount Quick Installation Guide for Yealink IP Phones.
2. Connect the handset and optional headset, as shown below:
Wireless Headset Adapter EHS36
Note: The headset 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 and EXP40, refer to Yealink EHS36 User Guide and Yealink EXP40 User Guide.
3. Connect the USB flash driver, as shown below:
Note: The USB port can also be used to connect the Bluetooth USB dongle BT40 or Wi-Fi USB dongle WF40. The
Bluetooth USB dongle BT40 or Wi-Fi USB dongle WF40 should be purchased separately. For more information
on how to use the BT40 and WF40, refer to Yealink Bluetooth USB Dongle BT40 User Guide and Yealink WiFi
USB Dongle WF40 User Guide.
4. Connect the network and power, as shown below:
You have two option for network and power connections. Your system administrator will advise you which one to use.
PC Connection
(Optional)
Power Adapter
(DC 5V)
AC Power Option
PoE ( Power over
Ethernet ) Option
PC Connection
(Optional)
IEEE 802.3af compliant
PoE Hub/Switch
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.
If inline power (PoE) is provided, you don’t need to connect the power adaper. Make sure the hub/switch is
PoE-compliant.
Startup
After the IP phone is connected to the network and
supplied with power, it automatically begins the
initialization process. After startup, the phone is ready
for use. You can configure the phone via phone user
interface or web user interfafce.
Welcome
Initializing... Please wait
Configuring Your Phone
Configuring via web user interface
Accessing the web user interface:
1. Press the OK key when the phone is idle to obtain the IP address of the phone.
2. Open a web browser on your computer, enter the IP address into the address bar (e.g., "http://192.168.0.10"
or "192.168.0.10") and then press the Enter.
3. Enter the user name (default: admin) and password (default: admin) in the login page and click Confirm.
Network Settings: Click on Network->Basic->IPv4 Config
You can configure the network settings in the following ways:
DHCP: By default, the phone attempts to contact a DHCP server in your network to obtain its valid network settings,
e.g., IP address, subnet mask, gateway address and DNS address.
Static IP Address: If your phone cannot contact a DHCP server for any reason, you need to configure the IP address,
subnet mask, gateway address, primary DNS address and secondary DNS address for the phone
manually.
PPPoE: If you are using an xDSL modem, you can connect your phone to the Internet via PPPoE mode. Contact the
ITSP for the PPPoE user name and password.
Note: The IP phone also supports IPv6, but IPv6 is disabled by default.
Wrong network settings may result in the inaccessibility of your phone and may have an impact on the
network performance. Contact your system administrator for more information.
Account Settings: Click on Account->Register->Account X (X=1,2,3...15,16)
Parameters of the account:
Register Status:
Line Active:
Label:
Display Name:
User Name:
Register Name:
Password:
Server Host:
It shows the register status of the current account.
You can select Enabled/Disabled to enable/disable the account.
It is shown on the LCD screen to identify the account.
It is shown as caller ID when placing a call.
It is provided by ITSP for registration (required).
It is an authenticated ID for authentication provided by ITSP (required).
It is provided by ITSP for registration (required).
It is provided by ITSP for registration (required).
Register status icons on the LCD screen:
(Gray) Register Failed
(Green) Registered
(Green and Flashing) Registering
Note: Check with your system administrator if any error appears during the registration process or a specific
configuration is required for your registration.
Configuring via phone user interface
Network Settings:
When the phone is idle, tap
->Advanced (default password: admin)->Network->WAN Port/VLAN/Webserver Type/802.1x/VPN/
LLDP/CDP/NAT to configure the network.
Account Settings:
When the phone is idle, tap
->Advanced (default password: admin)->Account to configure the account.
Note: For more information on account parameters, refer to Configuring via web user interface above.
Using Your Phone
Navigating the Touch Screen
To enter the main menu, tap
To return to the idle screen, tap
To go back to the previous menu, tap
To select a soft key, tap the soft key.
To select an item, tap the item.
To turn pages, tap
or
on the touch screen.
To scroll through values in a pull-down list, press
or
Entering and Updating Data
To enter data:
Tap the field you want to edit.
1.
2.
3.
4.
Tap the IME soft key to switch input modes.
Enter data using the keypad.
Tap the Save soft key.
To select a field option:
Tap the field name, and then tap the field’s highlighted box. From the pull-down list, tap the desired option.
Basic Call Features
Placing a Call
Using the handset:
1. Pick up the handset.
2. Enter the number, and then tap Send.
Using the speakerphone:
1. With the handset on-hook, press
2. Enter the number, and then tap Send.
Using the headset:
1. With the headset connected, press
to activate the headset mode.
2. Enter the number, and then tap Send.
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.
Answering a Call
Using the handset:
Pick up the handset.
Using the speakerphone:
Press
Using the headset:
Press
Note: You can reject an incoming call by tapping the Reject soft key.
Ending a Call
Using the handset:
Hang up the handset or tap the EndCall soft key.
Using the speakerphone:
Press
or tap the EndCall soft key.
Using the headset:
Tap the EndCall soft key.
Redial
Press
to enter the Placed Calls list, and then tap the desired entry.
Press
twice when the phone is idle to dial out the last dialed number.
Call Mute and Un-mute
Press
to mute the microphone during a call.
Press
again to un-mute the call.
Call Hold and Resume
To place a call on hold:
Press
or tap the Hold soft key during an active call.
To resume the call, do one of the following:
If there is only one call on hold, press
or tap the Resume soft key.
If there is more than one call on hold, tap the call you want to resume, and then press
soft key.
or tap the Resume
Call Transfer
You can transfer a call in the following ways:
Blind Transfer
1. Press
or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to.
3. Press
or tap Transfer.
Semi-Attended Transfer
1. Press
or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to, and then press
3. Press
or tap Transfer when you hear the ring-back tone.
Attended Transfer
1. Press
or tap the Transfer soft key during an active call. The call is placed on hold.
2. Enter the number you want to transfer to, and then press
3. Press
or tap Transfer when the second party answers.
Call Forward
To enable call forward:
1. When the phone is idle, tap
->Features->Call Forward.
2. Select the desired forward type:
Always Forward----Incoming calls are forwarded unconditionally.
Busy Forward----Incoming calls are forwarded when the phone is busy.
No Answer Forward----Incoming calls are forwarded if not answered after a period of time.
3. Enter the number you want to forward to. For No Answer Forward, tap the gray box of the After Ring Time field, and then tap
the desired ring time to wait before forwarding.
4. Tap the Save soft key to accept the change.
Call Conference
1. Tap the Conference soft key during an active call. The call is placed on hold.
2. Enter the number of the second party, and then tap Conference.
3. Tap the Conference soft key again when the second party answers. All parties are now joined in the conference.
4. Tap the EndCall soft key to disconnect all parties.
Note: You can split the conference call into two individual calls by tapping the Split soft key.
Voice Message
Message waiting indicator on the idle screen indicates that one or more voice messages are waiting at the message
center. The power indicator LED slowly flashes red.
To listen to voice messages:
and then tap Connect, or press
1. Tap
2. Follow the voice prompts to listen to your voice messages.
Customizing
Customizing
Your PhoneYour Phone
Call History
1. When the phone is idle, tap
2. Tap
3. Tap
or
, or press
, and then tap the desired call list on the left.
or
to scroll to the desired page.
after the desired entry, and then you can do the following:
Tap Send to call the entry.
Tap Add to add the entry to the local directory.
Tap Edit to edit the phone number of the entry before placing a call.
Tap Blacklist to add the entry to the blacklist.
Tap Delete to delete the entry from the list.
Contact Directory
To add a contact:
1. When the phone is idle, tap
, and then tap All Contacts on the left.
2. Tap Add to add a contact.
3. Enter a unique contact name in the Name field and contact numbers in the corresponding fields.
4. Tap the Save soft key to accept the change.
To edit a contact:
1. When the phone is idle, tap
2. Tap
, and then tap All Contacts on the left.
after the desired contact.
3. Edit the contact information.
4. Tap the Save soft key to accept the change.
To delete a contact:
1. When the phone is idle, tap
2. Tap
, and then tap All Contacts on the left.
after the desired contact , and then tap Delete.
3. Tap OK when the touch screen prompts “Delete selected item?”.
Note: You can add contacts from call history easily. For more information, refer to Call History above.
Volume Adjustment
Press
during a call to adjust the receiver volume of the handset/speakerphone/headset.
Press
Press
when the phone is idle or ringing to adjust the ringer volume.
to adjust the media volume in the corresponding screen.
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.
Federal Communication Commission Interference Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1)This device may not cause harmful interference, and
(2)This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this
equipment.

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