so i usually use my blue tooth when making or receiving calls, but when i recently tried to answer a call normally, i could not hear a thing. so i hit the speaker button and i was able to use the speaker just fine, with no issues at all. but when im making or receiving a call using the phone normally i dont hear anything at all. i found this quite strange because when my AT&T rep was setting it up, he used the phone to call some number and it worked fine. ive looked through tons of threads but have only found similar issues with the 3g and 3gs, and none of those solutions worked for me. any ideas guys?