1. From the home screen, swipe down from the top of the screen to reveal the Action center.
   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 ALL SETTINGS.
   
3. Scroll to, then tap call+SMS filter.
   
4. Tap accept.
   
5. Tap the Windows key to return to the home screen.
   
6. Tap the Phone icon.
   
7. Touch and hold the desired entry.
   
8. Tap block number.
   
9. Tap ok.
   
10. To remove a phone number from the block list, tap the menu icon.
    
11. Tap blocked calls.
    
12. Tap blocked numbers.
    
13. Touch and hold the desired number.
    
14. Tap unblock.