Hi Can anyone help me. We have MB A class that has built in car phone. My samsung S3 pairs fine, can transfer contacts to the phone book. I can receive calls and pick them up / put them down using steering wheel phone buttons, but to make a call I have to dial using the mobile phone, once this is done it comes through the car speaker system. If I try to dial using the car, it shows as connecting but no ring tone and then disconnects. Anyone else had the same problem? Have tried settings on my phone but can't find anything to change. Thanks!