I have just got myself a 745i 2002 model and am having a problem with the Handsfree. I insert my sim and it reads it fine, I can make a call but when I do my radio mutes but I cannot hear the other person, they can hear me and if I use the handheld phone which comes with the car I can hear them and they can hear me. I've been pulling my hair out for the last week trying to figure it out. Anyone out there who can put me out of my misery? your help will be very much appreciated.