1. From the home screen, tap Dialer.
   
2. Tap the Menu icon.
   
3. Tap Harassment filter.
   
4. Tap Blacklist.
   
5. To add a contact to the Blacklist, tap ADD CONTACTS.
   
6. Tap the desired option.
   
7. Tap the Phone number field to enter the desired number to add to the Blacklist.
   
8. Tap the Name field to enter a name for the contact.
   
9. Tap OK.
   
10. To remove a contact from the Blacklist, tap Remove.
    
11. Tap the tickmark to disable restoration of messages.
    
12. Tap Remove.