Right, every time I go to use the phone application on my iPhone 5, it freezes and just decides to stall. The problem though isn't identical every time, sometimes it will stall half way through a call, and sometimes before or during hanging up. Rebooting the phone doesn't appear to help either, closing it from the multitasking bar is useless too, its just the phone app that's freezing, even viber works fine. Any ideas? I'm not really in the mood for a full reset again. 