answer a call with bluetooht headset button

[532910]

Please add support to answer a call with bluetooht headset button.

[Viish]

We can't do that actually, the event of the bluetooth headset is specific to each headset and is handled by the OS, not forwarded to applications in most cases.

[532910]

Hmm, I'm sure the event is standard for bluetooth profile (HFP/HSP)
Moreover, standard android dialer can handle it.

[Viish]

Standard Android apps including dialer can't be compared to a third party application.
We don't have access to the same APIs and to my knowledge there is no way to do that. A few years back we tried and we determined we couldn't do it.
If this has changed I'd be interested to see the documentation.

[532910]

signalapp/Signal-Android#7679
https://developer.android.com/guide/topics/media-apps/mediabuttons

[Viish]

Thanks for the links.
But we don't use MediaSession so we can't use the MediaButton solution.
And I see no solution either on the Signal's issue.

[Viish]

For information, we had developed a prototype of linphone-android using Android's TelecomManager, so the default dialer interface is used instead of our own CallIncomingActivity, and that makes the Bluetooth headset's answer button work with Linphone.

[532910]

Is this

a TelecomManager?

So you can do that actually and this issue will be solved. It it better to leave it open untill?

[532910]

Really there is an another similar issue: "to end the call by bluetooth button" as now it just transfers it to the phone. Is another issue should be opened or this one should be updated?

[DJCrashdummy]

For information, we had developed a prototype of linphone-android using Android's TelecomManager, so the default dialer interface is used instead of our own CallIncomingActivity, and that makes the Bluetooth headset's answer button work with Linphone.

@Viish that sounds really cool! IIRC CSipSimple worked similar... 🤔