1. From the home screen, tap Phone.
   
2. Tap the Menu key.
   
3. Tap Call Settings.
   
4. Tap Additional settings.
   
5. Tap Caller ID.
   
6. To disable caller ID, tap Hide number.
   Note: To block your Caller ID on a per-call basis, dial *67 before the 10-digit phone number.
   
7. To re-enable caller ID, tap Caller ID.
   
8. Tap Network default or Show number to re-enable caller ID.