My facetime microphone will not work. I can hear all the audio from whoever I'm talking to but they cannot hear me. On top of that siri does not work, it will not recognize my voice. I took the phone to an apple store in Syracuse, over an hour away just to be told the replacement I was given in October is out of warranty and have a nice drive home. Once I got home I did some screwing around and realized that siri works perfectly if I raise the phone to my head, but not when I hit the home button. This makes me believe it is a software problem not a hardware one like the apple store said. Does anyone know how to fix this?