Help Bluetooth Incompatibility

[hojotogo]

I have been having problems with my bluetooth headsets/speakerphones. I am able to start voice dialing from the headset and connect a call but the call then transfers to the handset mic and earpiece. If I want to speak through my bluetooth headset I have to toggle the bluetooth button on the screen. I went to a corporate store and all they could offer is "this is a bluetooth incompatiblity issue with this phone." Does anyone know if this is true or if there are any work arounds? It almost makes voice dialing useless as i have to look at the phone anyway.

Thanks in advance