Bluetooth handsfree problems

[tkao2025]

I've been over at XDA and still have not found a solution. It is the strangest thing.

My Touch Pro has this problem with bluetooth. The bluetooth connects to headsets, can transfer files, and can play A2DP, but when I use headset to make a call, there's no sound coming through.

So when someone calls me, I can pick up using Bluetooth and no sound comes through. When I make a call, it shows dialing, but again no sound. The bluetooth obviously can transfer sound over from the phone, since A2DP works, but the phone mutes when using bluetooth for phone calls and I can't turn the volume up. I've tried 4 headsets and they all have the same problem so it must be the phone. Someone please shed some light and help me out...