I have the Bold 9930 and I love it however, it seems that if I receive a call and happen to be making a call at the same time the phone stops working. I can dial a number and it will say connected but wont ring. The time will run but no sound and no connection. I cant receive calls either and the only thing that fixes it is a battery pull. This happened with my 8830 and my storm before but never found a fix. Any tips other than a lengthy pull?