I tried 3 room - stock, CM 10.2.1 stable and CM 11 beta but it doesnt help.
Do you have some ideas?
Thank you for your reply.
My problem is that sometimes the microphone is cut (mute) during the call. Its mean that other side dont hear me but I hear everything. Sometimes I must hang up and call again and sometimes after maybe 10 second is all ok. But one time I hang up, call again but the person still does not hear me. So I must wait a few minute and call the person again.