Motorola iDEN i530 User Manual page 84

Advanced Calling Features
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 Press A under Change.
3 Scroll to the TTY mode you want.
4 Press A under Select.
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 TTY > Type.
3 Select the mode you want.
To change mode during a call using your TTY
device, issue one of the following commands:
74
• "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 81.)
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.
To change the TTY baud rate:
1 From the main menu, select Settings > Phone
Calls > TTY > Baud.
2 Press A under Change
3 Scroll to the baud rate for your location.
4 Press A under Select.