I just tried checking a voice mail and it played through but no sound through the ear receiver. Then I tried playing the voice mail over speaker and it worked well through the speaker. So I had my girlfriend call me and when it was NOT on speaker she could not hear me talk nor could I hear anything she was saying. Then I put it on speaker during the same phone call and I could hear her talk through the speaker and she could hear me talk through the mic. Two questions: 1) What do I have to do? I tried restarting the iPhone and no change, so now I feel like I am going to have to go restore it which will automatically give me the new software update 1.1.1. right? 2) Why does this even work like that? It makes it seem like the phone has two mics and one is used while on speaker and one is used while not on speaker, does this make sense? I cant imagine it being that way but it the thought is interesting and it seems to explain why the mic would work in one case and not the other.