[Bug]: Call audio doesn't go through Bluetooth headphones

[lissine0]

What Monal Release channel are you using?

Alpha

iOS system version (if applicable)

16.7

macOS system version (if applicable)

No response

Monal version

Alpha 0df4e16 (Jan 26 2025 05:58:18 UTC)

Used XMPP server (domain)

Personal server

Which XMPP-Server software are you using?

Prosody

XMPP Server Software Version

0.12.4

How many accounts are you using in Monal?

3

What happened?

If I have Bluetooth headphones connected, and I receive an audio call, the ringing happens through the headphones.
When I accept the call, the audio stops being played on the headphones, and starts being played on the ear speaker.
In fact, if I play an audio file while the call is ongoing, it is also played on the ear speaker.

Anything else?

No response

FAQ

• I have checked the FAQ for my issue

Considerations for XMPP users

• I have checked if my issue can be solved with Considerations for XMPP users and Considerations for XMPP server admins

XEP-Check

• I have checked that at least XEP-198, XEP-0280, XEP-0352, XEP-0357, XEP-0313 and XEP-0163 are activated on my server and shown as 'green' under Settings --> Account--> (i) in advanced settings

Notifications-Menu

• I have checked that all checkmarks are present under Settings --> Notifications

[lissine0]

Note: if Monal is the client that started the call, then the ringing sound and the Call ended error sounds can be heard on the Bluetooth headphones.
But as the other party accepts the call, the audio switches from the Bluetooth headphones to the ear speaker.