If you are an AT&T subscriber with an Apple iPhone, you might have found it difficult to make or answer a phone call today on your device. The nation’s second largest carrier is experiencing some sort of network issue that instantly disconnects calls once they are connected. Calls made to some iPhone models that support the AT&T pipeline are sent right to voicemail, without giving the device user a chance to answer.
AT&T’s @ATT Twitter account tweeted an easy solution that seems to work. Restarting the affected iPhone (multiple times if necessary) is supposed to help iPhone users … – Source