Zte A16 User Manual page 42

Ringing Tone: Many polyphonic ring tones for selection.
Ringing Volume: Adjust the volume of the ring tone.
Speaker Volume: Adjust the volume of the earpiece and earplug.
key Tone: Select to turn on/off the keypad tone.
Warn Tone: Select to turn on/off warning tone.
Missed Alert: Select to turn on/off the missed alert when there is any missed
messages or calls.
Message Alert: Select the alert tone type when a new message is coming or
select to turn off the alert tone.
Power on/off Ring: Select to turn on/off the power on/off ring tone.
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