LG LG720 - Manual (Page 147)

Settings 137
TTY mode
A TTY (also known as a TDD or Text Telephone) is a telecommunications phone that allows
people who are deaf, hard of hearing, or who have speech or language disabilities, to
communicate by telephone. Your phone is compatible with select TTY phones. Please check
with the manufacturer of your TTY phone to ensure that it is compatible with digital cell phones.
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 > > System settings > Call > TTY mode.
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 to reach an operator.
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.
WARNING: 911 Emergency Calling recommends that TTY users make emergency calls by
other means, including Telecommunications Relay Services (TRS), analog
cellular, and landline communications. Wireless TTY calls to 911 may be
corrupted when received by public safety answering points (PSAPs), rendering
some communications unintelligible. The problem encountered appears related
to software used by PSAPs. This matter has been brought to the attention of the
FCC, and the wireless industry and the PSAP community are currently working to
resolve this.
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.
2. Tap the Proximity Sensor checkbox to enable it. (A blue checkmark will appear.)
Wide Voice Extension
This option improves sound quality to get clear voice using wide voice band.