Cingular is the only wireless carrier who lets you roll over your unused anytime minutes from month to month so you don't waste your minutes.

Example of Rollover

For example, let's say that you used 50 minutes out of your packaged minutes in month 7. You have 400 package minutes a month so you have 350 unused minutes left. Instead of losing these minutes, they get added to your packaged minutes in month 8. So you start month 8 with your 400 package minutes plus 350 rollover minutes. Thus your total available minutes for month 8 are 750 package minutes.