Hi Ranger, I am using Jabra Freeway for calling, though it is little expensive but worth. While travelling on highway I pair my Galaxy Tab loaded with Sygic and phone.
So I can answer calls as well as get voice instruction.
ZMR i guess your device won't connect to AUX of cars head unit while playing music on pHONE.
My requirement was the device needs to be pair with cell phones so anyone can play music from their handset.
my trick: If I'm alone and or in City drive I use only FM and I always connect my phone to headunit via AUX whenever I get call I change mode to AUX so I can talk just as using handsfree.
Is that your device play music also over AUX of headunit?
this device is everything it is handsfree and connect to headunit via AUX and through bluetooth with phone.
in the link it showing 690 rupees I bought it for less from same vendor, but the device is very good and produces good quality output you can buy without any 2nd thought.
But even I use AC 99%...but i never had such problems...!!
very nice bro, happy that you are error free I wish the same for me