With Automatic Call Back, you'll never have to wait by the phone for a busy number to become free. Simply dial a code and walk away. Automatic Call Back keeps trying the number for you. When the number you are calling becomes available, Automatic Call Back alerts you with a distinctive ringing pattern on your telephone.
NOTE: If you don't answer the special notification ring, Automatic Call Back keeps ringing your phone every five minutes until the remainder of the 30 minutes is used up. After 30 minutes, Automatic Call Back is discontinued.