Hey guys I've had my iphone since UK launch and recently i've been experiencing some problems. Even though I have reception pretty much everywhere I go I'm starting to get a lot of people asking me why my phone is off as when they call it goes straight to answerphone. Of course my phone is always on so I have no idea what is happening. Additionally some people send me sms messages and they will arrive 2 hours late for example which I think is quite rare. There is no pattern to the problem and it will happen at any time of the day. I've spoken to o2 and they recommended turning voicemail off, reseting network settings etc but is there a chance the problem could be with the phone itself even though sometimes it does work? As I said I generally have 3g reception and if not definitely an Edge connection. Thanks in advance!