By Rich Hall on Wed, 12/09/2009
This tip is based on an excellent article at Macworld.com. You can check the balance on your AT&T bill or the remaining number of voice minutes you have directly from your iPhone. From the Home screen, go to Settings >Phone >AT&T Services. Select the button labeled “Check Bill Balance” or “View My Minutes.” AT&T will promptly send you a free SMS with the info.