Motorola iDEN i830 User Manual page 56

Advanced Calling Features
TTY device features such as Turbo-Code,
High-Speed, and Interruption are not supported by
your phone. These features must be turned off or
disabled to use your TTY device with your phone.
Turning On the TTY Feature
Your phone's TTY feature must be on if you want
to make TTY calls, set the TTY mode, or change
the TTY baud rate. To make sure the TTY feature
is on:
From the main menu, select Settings > Phone
Calls > TTY > Use TTY. This field must say On.
Choosing a Mode
Your phone supports these TTY modes:
• TTY — You type and read text on your TTY
device.
• VCO (Voice-Carry-Over) — You speak into your
phone and read text replies on your TTY device.
• HCO (Hearing-Carry-Over) — You type text on
your TTY device and listen to voice replies on
your phone speaker.
To change mode while not in a call:
1 From the main menu, select Settings > Phone
Calls > TTY > Type.
2 Select the TTY mode you want.
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When you make a TTY call, the call begins in the
TTY mode you last selected.
To change mode during a call using your phone:
1 Press m.
2 Select In Call Setup > TTY > Type.
3 Select the mode you want.
To change mode during a call using your TTY
device, issue one of the following commands:
• "VCO please" — to select VCO mode
• "HCO please" — to select HCO mode
• "HCO off please" — to turn off HCO mode
Important: When you are using HCO, the sound
coming from your phone speaker may
be uncomfortably loud. Use caution
when putting the phone to your ear.
(For information on setting the volume
of your phone speaker, see "Setting the
Volume" on page 88.)
Changing the TTY Baud Rate
By default, your phone's TTY baud rate is set to
45.45, the baud rate required for TTY calls within
the U.S. To make calls outside the U.S., set your
TTY baud rate to 50.0.