Proximity Sensor - LG Optimus quest LTE User Manual

Settings
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Your phone and TTY phone will connect via a special cable that plugs into
your phone's headset jack. If this cable was not provided with your TTY
phone, contact your TTY phone manufacturer to purchase the connector
cable.
Turn TTY Mode On or Off
1. Press
2. Tap TTY Off to turn TTY mode off or tap TTY FULL, TTY HCO or TTY
VCO.
To access the state Telecommunications Relay Service (TRS) for assistance
with TTY calls:
Dial
NOTE In TTY Mode, your phone will display the TTY access icon. When enabled, TTY mode may
impair the audio quality of non-TTY phones connected to the headset jack.

Proximity Sensor

You can access the phone's proximity sensor through the Call Settings
menu.
When receiving and making calls, this sensor automatically turns the
backlight off and locks the touch keypad by sensing when the phone is near
your ear. This extends battery life and prevents the touch keypad from
activating unintentionally during calls.
To enable the Proximity Sensor:
1. Press
> > System settings > Call > TTY mode.
to reach an operator.
> > System settings > Call.