BLOCK: From the home screen, select the Phone app. Select the Menu icon, then select Settings.
Select Call blocking > ADD A NUMBER. Note: To quickly block messages from a number that has called you, select the RECENTS tab > desired number > Call details > scroll to and select Block number.
Enter the desired phone number, then select BLOCK. Note: The phone number will now appear in your Blocked numbers list.
UNBLOCK: To remove a number from the Blocked numbers list, select the Remove icon then select UNBLOCK.