Bluetooth Pairing topic

I currently am have Android 4.3 and just bought a Pioneer DEH-X8500BH which has hands free capability using bluetooth. I can pair up my phone and i can listen to Pandora through bluetooth but the hands free calling is not working. I can see my phone book, missed calls, dialed calls, and received calls on the radio so that tells me it is syncing but I can't use the car speakers to talk through the supplied mic. I can't help but to think this is an Android Bluetooth issue since my wife's Iphone 4s pairs up and works just fine. The radio supports Bluetooth Serial Port Profile(SPP) and A2DP(Advanced Audio Distribution Profile).