If you don't want to answer your phone for some reason and want the call to forward to another number (voice mail or somewhere else), you set this up by doing the following while in the Phone application:

1. From the main Phone screen, press MENU then select Settings > Call Forwarding & Voice Mail. The Set Up Forwarding screen appears after a brief delay.
2. The currently-selected (active) forwarding option is the one selected on the pop-up menu. Select the pop-up menu to see the forwarding options:
   
   • Forward to Voice Mail
     
   • Forward All Calls
     
     You can choose to forward to Voice Mail or Other. If you select Other, a dialog box opens in which you must type the other number.
     
     
     
   • Forward to Custom Number
     
     For each call situation (Busy, Unanswered, or Out-of-range), you can select a forwarding number. Again, you can choose from Voice Mail, Other, or Disable (to disable forwarding). If you select Other, then the Forwarding dialog box opens, in which you must type the other number.
   To turn off forwarding altogether, select the Disable option for each call situation

Back to Phone setting screen.