This morning while trying to make a call.. keep getting call failed message. Have not been able to make a call all day. Went to an A.T.&T. store that sells the iphone near my office. "CLUELESS" told me to call 1-800-myiphone. Only problem was I CAN NOT MAKE AN OUT GOING CALL that is why I am here. Gave me a phone from across the counter and made the call. On the phone for over 1 1/2 hours... between Apple Support and A.T.&T. each saying it was not their problem. I have had the iphone now for 3 weeks and until today glowing reviews from me... better than I expected. Made an appointment for 6 o'Clock this afternoon at the Genius Bar at the Apple store here in my home town. I have read some forums that people are 3 hours from the nearest Apple Store. All of the other functions work on the phone... I can receive calls.. text..e-mail..just can not make a call. If Apple has this problem where there is not a store near by could be a VERY BIG PROBLEM. Can not resolve by talking on phone for 1 1/2 hours basically doing the same thing each time a different person came on line. Very disappointed.. when I was disconnected just left the store and prayed that I would not have an emergency and could not make a call. Oh yes... I could text my wife and tell her I have had an accident or what ever !! 
