I have full functionality on my Infuse 4G but when I receive a call (still rings properly) i cannot hear the person calling me. I actually cannot hear anything. They cannot hear me either. They do hear the ringing and can leave a message in my voice mail. If i call voice mail i cannot hear anything. It has happened to me once before and AT&T made me do a factory reset which erased all my data ( After they promised it wouldn't) which made it work again but less than a month later same problem. I don't want to keep resetting my phone every month. Has anyone had this problem? Any ideas to fix it?