User Guide

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• TTY: TTY (also known as a
TDD or Test Telephone) is a
telecommunications device that
allows people who are deaf or
hard of hearing, or who have
speech or language disabilities, to
communicate via a telephone. Voice
can be translated into characters
and displayed on the TTY.

Press the Left Soft Key
[Menu] ⁄ [Settings].

Press [Phone Settings] ⁄
[Advanced] ⁄ [TTY].

Press the Navigation Key
up or down to select from the
following options:
• TTY Off: Turn off TTY mode.
• TTY Full: Turn on the full TTY
Capability.
• TTY + Talk(VCO): Turn on TTY in
voice carry-over mode.
SETTINGSSETTINGS
• TTY + Hear(HCO): Turn on TTY in
hearing carry-over model.

Press to save the setting.
• DTMF (Dual Tone Multi-Frequency):
This function is to discharge the
number (code) and converts it to
digit information. You can turn
the DTMF key tones off or on
during a call. When the [DTMF
Off] option is selected, your phone
does not transmit the key tones. It
allows you to press keys without
hearing any key tones during calls.
To communicate with answering
machines or computerized
telephone systems, automated
dial-up service such as banks and
airlines, you must select the [DTMF
On] option.

Press the Left Soft Key
[Menu] ⁄ [Settings].

Press [Phone Settings] ⁄
[Advanced] ⁄ [DTMF].