LG CU500 - Manual (Page 76)

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Settings
TTY mode (Tele Type writer)
TTY modes are as follows :
1. TTY Full:
- Users who cannot talk and hear send and receive a
text message through TTY equipment.
2. TTY Talk:
- Users who can talk but cannot hear receive a text
message and send voice messages through TTY
equipment.
3. TTY Hear:
- Users who can hear but cannot talk send a text
message and receive voice messages through TTY
equipment.
Connecting TTY Equipment and a Terminal
1. Connect a TTY cable the TTY connection on the
terminal. (the TTY connection location is the same as
a hands-free ear socket)
2. Enter the phone menu and set up the desired TTY
mode. (For a TTY mode, see below)
3. After setting a TTY mode, check the LCD screen of
the phone for the TTY icon.
4. Connect the TTY equipment to the power source and
turn it on.
5. Make a phone connection to the desired number.
Menu User Feature
Transmission When making communications
/Receiving Mode with a normal terminal
TTY Full
For hearing- text message transmission,
operator required
/speech- impaired text message reception
TTY+TALK For hearing-impaired can talk
voice transmission,
operator required
text message reception
TTY+HEAR For speech-impaired audible
text message transmission,
operator required
voice reception