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.
Tap the Menuicon.
Scroll to and tap Callreject.
Tap Reject calls from.
To add all Unknown numbers (No caller ID) to the rejection list, tap Private numbers.
To add a number to the Call rejection list, tap the Add icon.
Choose Desiredcontact, recentcall or enter the Desirednumber to add to the list and tap Done.
To remove a number from the Call rejection list, tap the Deleteicon.
Tap the Desirednumber(s) to remove, and tap DELETE.