[IOS]

It worked fine for 6 months jailbroken on Airvoice Wireless.
It still get's text just fine, but cannot receive calls- it goes strait to voicemail. When I try to make a call it makes the classic disconnected tone youtube.com/watch?v=Ipliv83zfUU and says call failed.

sometimes the buttons get pressed in my pocket, so maybe some settings may have got accidentally changed.