Specifications

Using Turbo Code
®
About Turbo Code
Turbo Code is an enhanced TTY protocol. It sends signals to other
Turbo Code TTYs as fast as you type and allows you to interrupt the
other person at any time during a conversation. The Supercom 4400
takes care of connecting in Turbo Code or Baudot code, depending
on which code the other TTY is using. It only uses Turbo Code
when you connect with another Turbo Code TTY. You can also
“lock” Turbo Code to be always on during a call. See Tubro Code lock
on page 81.
Turbo Code also allows you to use the special “shift” characters on
the top row of your TTY (example: @ # % ^ & * _ < >). If your
call is connected in Baudot, these characters cannot be received or
printed at the other end of the line. This is yet another example of
why Turbo Code is better for TTY communication than Baudot—
especially in the day of sharing your email address.
You know you are connected in Turbo Code if a dot appears in the
lower left-hand corner of the display.
CALLING • 23
This is how the Turbo Code dot looks on the display.
Turning off Turbo Code + +
You can switch to Baudot code at any time by pressing
+ + . The Supercom 4400 will return to using either
Turbo Code or Baudot code when you turn it off.
BShiftCtrl
BShiftCtrl