If you want to use a wired headset, physically connect your headset, and activate the headset mode for use.
Some phone models support Bluetooth automatically with built-in Bluetooth functionality.
If you want to use a wireless headset on a phone that does not have Bluetooth built-in insert the Bluetooth USB dongle into the USB port on the back of the phone.
Note: If both a Bluetooth headset and a wired headset are connected, only the Bluetooth headset can be used.
A list of compatible Yealink headsets is attached to this article. Please refer to the manufacturer of the headset or the manufacturer's website for information regarding set up and configuration. Most headset products will come with instructions on how to properly connect their device to a desk phone.
To activate the headset mode:
1. Press 
on the phone.
The HEADSET key LED illuminates solid green when the headset mode is activated. Press the line key or the Answer soft key to answer an incoming call. The call will be connected to your headset automatically.
Enter the desired number and press the Send soft key, then the phone will place a call using the headset automatically.
To deactivate the headset mode:
1. Press again on the phone.
The HEADSET key LED goes out when the headset mode is deactivated.
Bluetooth Headset
Most Yealink phone support Bluetooth. Bluetooth enables low-bandwidth wireless connections within a range of 10 meters (32 feet). The best performance is in the 1- to 2-meter (3- to 6-foot) range.
You can activate/deactivate the Bluetooth mode, and then pair and connect the Bluetooth headset with your phone. You can also disconnect and delete your Bluetooth headset from the phone.
Note: Some devices such as T27G, and T29G models require a Bluetooth USB adapter inorder to facilitate the use of Bluetooh devices. Ensure that the Bluetooth USB dongle is properly connected into the USB port on the back of the phone. Bluetooth adapters are available for purchase on the SpectrumVoIP Store: https://www.spectrumvoipstore.com/Bluetooth_Adapter/p2278465_13240076.aspx
To activate the Bluetooth mode via phone user interface:
1. Press Menu->Basic->Bluetooth.
2. Press 
or 
, or the Switch soft key to select On from the Bluetooth field.
3. Press the Save soft key to accept the change.
The LCD screen displays the Bluetooth icon 
.
To deactivate the Bluetooth mode via phone user interface:
1. Press Menu->Basic->Bluetooth.
2. Press 
or 
, or the Switch soft key to select Off from the Bluetooth field.
3. Press the Save soft key to accept the change.
The Bluetooth icon 
disappears from the phone.
Bluetooth mode is configurable via web user interface at the path Features->Bluetooth.
Before you pair a Bluetooth headset, check the indicator on the Bluetooth headset to make sure 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:
1. Press Menu->Basic->Bluetooth.
2. Press the Scan soft key to search the Bluetooth devices after making sure your headset is in Pairing Mode.
The LCD screen prompts the following message:
The phone proceeds to scan the local Bluetooth devices. When the phone completes scan, it will display the found Bluetooth devices on the LCD screen.
3. Select the desired Bluetooth headset and press Connect soft key.
4. Enter the PIN in the Password field.
The default PIN is “0000” or “1234”.
5. Press the OK soft key.
After a while, the Bluetooth headset is automatically connected to your phone.
The Bluetooth icon 
appears on the LCD screen.
With the Bluetooth headset paired and connected, you can use the Bluetooth headset to place and answer calls. For more information, refer to the documentation from the Bluetooth headset manufacturer.
To view the Bluetooth headset information:
1. Press Menu->Basic->Bluetooth->Paired Bluetooth Device.
The LCD screen displays a list of paired and connected Bluetooth headsets.
2. Select the desired Bluetooth headset.
3. Press the Option soft key, and then select Detail from the prompt list to view the
Bluetooth headset information:
- Device Name: the name of the Bluetooth headset.
- MAC Address: the MAC address of the Bluetooth headset.
- Auto Connection: Enables or disables the Bluetooth headset to connect with the phone automatically.
To change the priority of paired Bluetooth devices
1. Press Menu->Basic->Bluetooth->Paired Bluetooth Device.
2. Select the desired Bluetooth headset.
3. Press the Option soft key, and then select Move Up or Move Down from the prompt list.
The top one has the highest priority. When there is no Bluetooth headset connected, the phone will automatically connect to the Bluetooth headset with the highest priority.
You can disconnect the Bluetooth headset from your phone. When you disconnect the Bluetooth headset, it still displays in the Paired Bluetooth Device list. You can easily connect it to your phone again.
To disconnect your Bluetooth headset from your phone:
1. Press Menu->Basic->Bluetooth->Paired Bluetooth Device.
2. Select the connected Bluetooth headset.
3. Press the Disconnect soft key.
The Bluetooth headset is disconnected. To connect it to your phone again, press the Connect soft key.
You can delete your Bluetooth headset from your phone. When you delete the Bluetooth headset, it disappears from the Paired Bluetooth Device list. To connect it to your phone again, you need to scan and connect it again.
To delete your Bluetooth headset from your phone:
1. Press Menu->Basic->Bluetooth->Paired Bluetooth Device.
2. Select the Bluetooth headset you want to delete.
3. Press the Option soft key, and then select Delete from the prompt list.
The LCD screen prompts the following warning “Delete the selected item?”.
4. Press the OK soft key to confirm the deletion or the Cancel soft key to cancel.