1. From the Home screen, tap the Phone icon.
   Note: The call blocking feature may not affect phone calls made or received via third-party apps installed on your device. Please contact third party app developers for assistance with such applications.
   
2. Tap the Menu icon.
   
3. Tap Blocked contacts.
   
4. Tap the Add icon.
   
5. Tap the desired option.
   Note: For this demonstration, tap Add number.
   
6. Enter the desired phone number.
   
7. Tap OK.
   
8. To unblock a contact, touch and hold the desired contact.
   
9. Tap Unblock contacts.
   
10. Tap OK.