Originally Posted by PaulR
Just a thought, but you don't have any other call apps (e.g Skype) installed on the phone do you?
I had an issue once where the phone (Galaxy S3) would pair but wouldn't dial calls using iDrive. Turned out it was Android prompting for input on the phone screen for the default application to use for the call operation.
Probably not your issue, but worth checking.
Cheers for the heads-up. I do have Skype installed. Will check it out.