1. From the home screen, press the Menu key.
   
2. Select Phone, then press the Center Nav key.
   
3. Press the Options key.
   
4. Select Call settings, then press the Center Nav key.
   
5. Select Additional settings, then press the Center Nav key.
   
6. Select Caller ID, then press the Center Nav key.
   
7. To always hide your phone number, select Hide number, then press the Center Nav key.
   Note: To block your Caller ID on a per-call basis, dial *67 before the 10-digit phone number.
   
8. To always show your phone number, select Show number, then press the Center Nav key.