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15.1615.16
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C C
C C
C
TMTM
TMTM
TM
From the idle screen, press the
Menu KeyMenu Key
Menu KeyMenu Key
Menu Key to open the main menu.
• Tap
SetSet
SetSet
Set
tings > Handset > Ctings > Handset > C
tings > Handset > Ctings > Handset > C
tings > Handset > C
TM setTM set
TM setTM set
TM set
tingstings
tingstings
tings.
CTM (Cellular Text Telephone Modem) is a text based communications protocol to offer support to
hearing and speech impaired people. Hearing or speech impaired persons can communicate using a teletype
(TTY) terminal connected to the mobile phone via a CTM Modem. The TTY signals are sent alongside
speech so it is possible to configure the system to enable speaking and hearing as well as typing or receiving
text to the TTY device. See below for the options available:
CC
CC
C
TM setTM set
TM setTM set
TM set
tingstings
tingstings
tings
DescriptionDescription
DescriptionDescription
Description
FullFull
FullFull
Full Text entered on the terminal is sent to the other party. Received text from the
other party is displayed on the terminal.
Write & HearWrite & Hear
Write & HearWrite & Hear
Write & Hear Text entered on the terminal is sent to the other party. Incoming speech is
heard from the other party.
TT
TT
T
alk & Ralk & R
alk & Ralk & R
alk & R
eadead
eadead
ead Received text is displayed on the terminal. Voice is relayed to the other party.
OFFOFF
OFFOFF
O F F All CTM is disabled, use the phone as normal.
• If you are using a TTY device make sure the terminal baud rate is set to 45.45 bps
• If you are using a terminal with a CTM modem built in then select CTM Off on the handset.
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