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Cisco VoIP - Connecting a USB headset or Bluetooth device to a telephone

Instruction on how to use a USB or Bluetooth device such as a headset, speaker, or hearing aids on 8851 Cisco VoIP phone. To check which phone model you have, press the Applications button (looks like a gear) and select Phone information. The Model number field shows your phone model. Please note that the 7841 model phone is not compatible with USB or Bluetooth.

USB Headsets

Connect a USB Headset

When you use USB headsets with your phone, keep in mind:

  • You can use only one headset at a time. The most-recently connected headset is the active headset.
  • If you are on an active call and unplug a USB headset, the audio path does not change automatically. You need to press the Speakerphone button or pick up the handset.


Plug the USB headset plug into the USB port on the phone.

Bluetooth Devices

When you use Bluetooth devices with your phone, keep in mind:

  • If you have both a Bluetooth device and a standard headset attached to the phone, only one type of these devices will work at any time. When you enable one, the other is automatically disabled.
  • If you use a USB headset, both the Bluetooth and analog headset are disabled. If you unplug the USB headset, you need to enable the Bluetooth or standard headset.
  • For optimum headset coverage, use your Bluetooth device within 10 feet (3 meters) of the phone.
  • Some hearing aids require additional equipment to be able to connect with an 8851 phone. Please consult your owners manual.
  • Your phone supports the Bluetooth Handsfree Profile. If your Bluetooth headset supports these features, you can use your headset to:
    • Answer a call
    • End a call
    • Change the headset volume for a call
    • Redial a number
    • View Caller ID
    • Reject a call
    • Divert a call
    • Place a call on hold by answering an incoming call
    • End a call by answering an incoming call

Turn Bluetooth On or Off

When Bluetooth is active, the Bluetooth icon appears in the phone screen header.


Step 1 Press Applications. Applications.jpg

Step 2 Select Bluetooth.

Step 3 Press On or Off.


Add a Bluetooth device


Step 1 Make your Bluetooth device discoverable. Please refer to your Bluetooth device's manual for instructions.

Step 2 Press Applications. Applications.jpg

Step 3 Select Bluetooth > Add Bluetooth device.

Your phone searches for discoverable accessories.

Step 4 Select your device and press Connect.

Step 5 (Optional) If prompted, enter the PIN for your device.


Disconnect a Bluetooth Headset

You should disconnect your Bluetooth headset before you use it with another device.


Step 1 Press Applications. Applications.jpg

Step 2 Select Bluetooth.

Step 3 Select the Bluetooth device.

Step 4 Press Disconnect.

Remove a Bluetooth Headset

Remove your Bluetooth device if you aren't going to use it with your phone again.


Step 1 Press Applications. Applications.jpg

Step 2 Select Bluetooth.

Step 3 Select a Bluetooth device and press Delete.

Swap Headsets While on a Call

You can connect a Bluetooth device and a USB headset simultaneously to your phone.

However, you can use only one device at a time.

When you connect multiple devices to the phone, you can switch among the headsets during a call by pressing the Headset key on the phone. Though the phone is connected to multiple devices, you see a specific headset is selected as the preferred audio device in the following priority order:

  • When you connect a USB headset and a Bluetooth you can make your USB headset the preferred audio device.


Step 1 Before you make or answer a call, press Headset.

Step 2 (Optional) If you place a call, dial the number.

If you need further help, please contact the DoIT Help Desk for assistance

Keywordsusb headset, bluetooth headset, headset, swap headset, hearing aids, device phone, headphones, speaker   Doc ID76076
OwnerELIZABETH C.GroupVoice Services
Created2017-08-25 09:37:33Updated2022-03-07 15:10:46
SitesDoIT Help Desk, Voice Services
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