1. From the home screen, tap Phone.
   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 Call settings.
   
4. Scroll to and tap Call rejection.
   
5. Tap Call rejection list.
   
6. To add all Unknown numbers (No caller ID) to the rejection list, tap Unknown number.
   
7. To add a number to the Call rejection list, tap the Add icon.
   
8. Select Desired search field, then choose Desired contact, recent call or enter the Desired number to add to the list and tap SAVE.
   
9. To turn the call rejection list on or off, from the 'Call rejection' screen, tap Call rejection.
   Note: When call rejection is on (checked), calls from number's on the rejection list will be sent straight to voicemail.
   
10. To remove a number from the Call rejection list, tap the Delete icon.
    
11. Tap the Desired number(s) to remove, and tap DONE.