Anyone else out there having an issue where their phone is not ringing? At first I thought it might be a coverage issue or user error, but my wife has an iPhone and the minute someone calls her, her phone 'wakes' and rings. I've called my mobile from my home line, my work line, and my wife's iPhone and it does not 'wake' and eventually just goes to voice mail. I've looked at all my settings and everything looks okay. I've tried a soft reset and restore of iPhone to no avail. Any ideas?