How to PERMANENTLY disable Handsfree Telephony for a bluetooth device in Windows 11?

Question

I need to disable Handsfree Telephony to make my Sony WH-1000XM4 headphones work in MS Teams (as resolved in this thread).

But, the setting keeps being enabled again - possibly during reboot or bluetooth re-connection.

Is there a way to PERMANENTLY disable the setting for this device?

Aside: I'm open to a fix in powershell if anyone knows the API calls for toggling the setting based on BT connection trigger.

Answer 1

I had this problem. The bluetooth headset was continually having problems with the audio in MS Teams. When I disabled the Telephony service, it disabled the microphone portion of the headset, but the headphones still worked. I then immediately reenabled the Telephony Service and now it works perfectly in MS Teams.
Again, I went into the driver properties, unchecked the Telephony Service, applied the settings. Then went back into the driver settings and reenabled the telephony service. This resulted in my headset being identified as two devices. A headset, and a headphones for the dame device. This has been stable across multiple reboots. I did this for two different bluetooth headsets with the same results.
So far I have only had to mess with the settings again after installing audio driver updates. I just do the same thing again: Disable "Hands Free Telephony Service"; Apply the settings; ReEnable the telephony service and apply. then close the device properties; lastly select the two devices in the "Sound Settings" that you can get to from the speaker icon in the tray.

Answer 2

THANK YOU