I Used it. It worked Moto Razr with Moto G I tried to use it a couple of times before. But it worked this time. Its a brilliant concept. Do let me know if I can be of any help. The only problem was that there was a delay in relay of voice call from the host to the receiver. The Receiver's voice had a huge delay of more than 30 sec. Also  the broadcast message kept popping up. There wasn't any option to delete or mark as read. Great work! Cheers Sid
March 28 2014