lexus7008

Is anyone else having problems with bluetooth disconnecting after two phone calls on their iPhone 6s? If I manually place a third phone call, in the middle of the call, it will reconnect and the sound will start coming out the speakers again. Then, after two calls, it starts all over again. Swapped out phones, still same problem. Is there a firmware update for the RX? IOS 10.1.1 but it seems to have started after the the 10.X update. Several factory resets have not helped. Help!