Zte A39 User Manual page 42

If you have added something, you can directly enter the friend list. Press
Options to select such options: Add, Edit, Delete.
If you have set "Bar Blacklist", all the phone numbers in the black list or the phone
numbers started with the numbers of the black list can not be connected.
Black List: Press Select to access.
If you have not added anything, the screen displays "List empty". Press Add to
add the phone number, and then press Left soft key [OK] to save.
If you have added something, you can directly enter the black list. Press
Options to select such options: Add, Edit, Delete.
If you have set "Friend Only", only the phone numbers in the friend list or the phone
numbers started with the numbers of the friend list can be connected.
Current Settings: Press Select to access and the following options are displayed:
Bar All, Bar Blacklist, Friend Only and Cancel All.
Note: The phone numbers in the blacklist should be the fixed telephone number
added with area code, or the call can not be banned.
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