-On Android, it's expected that answering a phone call or dropping one via the button on your bluetooth headset should not work. To give you a better perspective on this, no other application out there supports this function. None. Not Skype, not Facebook, not Whatsapp, not Viber, nothing.
Wow, that's the first. Maybe if you will list here all apps that are not phone replacement you can prove that point. As far as I can say using call.center, GS Wave, Zoiper, Bria and built-in Android SIP client will do exactly that. I don't care about Facebook Messanger because that app is not a phone app. Neither is Whatsapp, but I can answer a call in that app via Bluetooth actually. Viber - can't say, never used it.
-In regards to the other issue about audio sources, music etc, we've done some internal tests with various phones and see that everything works fine for us. If you have any issues with this, please clearly write them out in a manner that would help us reproduce and fix them if there are any.
I stand corrected. The music playback is pausing. But, for some reason, the headphones are not playing that source after a finished phone call. Don't know why. Tested on OnePlus 3T and three different Bluetooth headphones - Creative Outlier Sports, Bose QC35, Bragi Dash. All three had the same issue for me. Maybe it's the phone, but I do not want to test it with my tablet as 3CX phone app doesn't have tablet layout...
Another problem - with Bose headphones the music playback will stop but I won't hear the conversation either via headphones or internal speaker. Just nowhere. If I will push speakerphone it will work, but not on internal speaker or BT. And pushing a button on the headphones will play music
while still being in the conversation.
Keep in mind that the Android application like all of our products are under constant development. If there are any features you feel are not updated, please list them and we'l see what can be done.
Really? Sometimes one can be confused. Constant development and yet the look and feel of the app is like back to 2007 and first Android apps. If you do develop it all the time, maybe a significant refresh would be a good thing as the UI feels outdated. Material design would be awesome to have here. And with that feel come doubts that someone is maintaining it, fixing issues. Sorry, maybe I feel sour here, but I run a remote-only business, and all of my employees use Android or iOS phones for operations. So for us Android app is somewhat crucial...