Zte Z837VL User Manual page 76

2. Touch Voicemail to configure voicemail settings.
 Touch Service to select the voicemail service provider.
Your carrier is the default.
 Touch Setup > Voicemail number to edit the voicemail
number.
 Touch Ringtone to select the notification sound for new
voicemails.

Check Vibrate to enable vibration for notification.
Set TTY Mode
Your phone is a TTY compatible device. A TTY device can allow
people who have hearing or speech disabilities to communicate
by telephone. Simply connect the TTY device to the phone's
headset jack.
Select a TTY mode for your phone to work with a TTY device, or
turn TTY off.
1. Touch the Home key >
Settings > Call settings > TTY mode.
2. Select one of the following options. Consult your
teletypewriter manufacturer's manual if necessary.
TTY Off: Users who can hear and talk can disable TTY

support.
TTY Full: Users who cannot talk or hear may use this

mode to send and receive text messages through TTY
device.
TTY HCO: Users who can hear, but cannot talk, may use

this mode to listen to conversation of the other party, and
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