I am developing an application which has to reply sound over Bluetooth to another device. Everything goes fine as long as I use the A2DP but what I really need is sending the sound over SCO protocol. The A2DP will be soon removed from the device I am using.
I read the whole Internet and I found out that last year sending sound over SCO was not supported (then how did the hands free sets work?!). There are functions which do seem to support it. When I set
then the last functions returns true, I cant hear anything in the phone's speaker and when I change the volume I see "Bluetooth In-call volume" but I hear nothing in the headset.