I discovered a few weeks back that my boss started recieving phone calls from my phone number. This was extra wierd because I didn't even have his number until we had a 'you called me?//no i didnt' moment. My first phone was a motorola RAZR, and after the first few weeks of 'making' calls to my boss I upgraded to an iphone, so now we're both on an iphone. Everything seemed fine until today when I discovered he's starting to get missed calls from my number again. I've trawled all over my AT&T bills but there's never anything being dialed out to his number. AT&T are telling us there's no way possible he could be getting calls that weren't created so it's a great mystery. I have a fully updated 3G S and he has either a 3G or a first gen iphone. Not brave enough to suggest to him that it might be his phone as I'm only a contract worker, and he can fire me in a second. It's naturally making things uncomfortable. What could be causing this?