Blocking and Unblocking a Contact
If you no longer want to receive text messages or phone calls from a contact, you can block their number on your device. This however does not prevent the contact from leaving voicemails.
1.
From the Contacts app main screen, select a contact.
2.
Tap the Menu icon.
3.
Tap Block contact.
4.
Tap BLOCK.
5.
To unblock a contact, tap the Menu icon.
6.
Tap Unblock contact.
7.
You've completed the steps!
