All of a sudden I was on a call and the call was dropped. I tried calling back and it said call failed. I cant even call my service provider *611 it will say call failed. I tried resetting network connections and toggling between airplane mode. I also restarted the phone and took out the sim card and put it back in. Anyone have an idea what might be happening here? I am currently restoring the phone right now but I really doubt that will fix it, just with my luck anyways. Any ideas??