1. To block or alter your caller ID, from the home screen, tap the Phone icon.
   
2. Tap the Menu Icon.
   
3. Scroll to, then tap Settings.
   
4. Scroll to, then tap Additional settings.
   
5. Tap Caller ID.
   
6. Tap Hide number.
   Note: To block your Caller ID on a per-call basis, dial *67 before the 10-digit phone number.
   
7. To enable again, tap Caller ID.
   
8. Tap Show number.