Zte A16 User Manual page 74

6. No alarm tone when the reminder time reaches.
Check the profile setting and the alarm ring setting.
7. A phone number cannot be dialed.
Check whether call restriction is set to the number.
8. A phone call cannot be answered.
Check the "Black List" in the Call Firewall menu.
9. Short message cannot be sent.
Check the Msg centre setting in the Message-Msg Settings menu.
10. Some menus related to voice setting cannot be used.
Check the profile settings.
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