Zte N9517 User Manual page 69

Setting 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. Tap the Home key >
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 a TTY
device.
TTY HCO: Users who can hear, but cannot talk, may use

this mode to listen to the other party, and respond via text
messages.
TTY VCO: Users who can talk, but cannot hear, may use

this mode to talk through the phone and receive
responses via text messages.
> > Settings > Accessibility >
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