Nokia 6300

Hi,
I am having some problems with my Nokia 6300 and Blue & Me. They are successfully paired and the phonebook copies across fine, but when I make a call I can't hear the other person and the other person can't hear me. I think it's a setting on the phone, as I have checked the system with another (Sony Ericsson) phone.

Please could somebody whose Nokia 6300 works successfully tell me what profile the phone is set to? My phone displays a small red car symbol when paired.

Cheers