So I got my new 6 today, after two calls to AT&T I got it activated. Now I cannot text my friends who don't have an iOS device nor can I receive messages. IMessage works fine, I turned on SMS under Messages. My phone number is correct under general > phone. I tried reseting network settings also, that didn't help either. Any clue? Edit 1: I can make and receive calls fine. Edit 2: Resolved Issue, see post 8.