Zte A39 User Manual page 58

"List empty". Press Options-Add to access the adding interface, add blacklist, and
then press OK to save. If you have added, you will directly access blacklist, press
Options to access and then select Add/Edit/Delete/Clear All options.
Used Space: Check the total amount of messages that has already been stored
and can be stored at most in the SIM card and the handset.
Voice Mail
Select and Access Voice Mail submenu:
Select Get Voice Mail to check the voicemail box and listen to the voice
message.
Voice Mail Num.: Set the voicemail number.
Cell Info.
You can view them detailed cell information by select Read Info
messages.
Select Settings to set Language or Set Info Subjects.
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