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Date   : Mon, 04 Apr 1983 1831-:00PST
From   : STERNLIGHT@usc-ecl.arpa
Subject: Sending control characters via modem programs

In response to LHILL's question about getting control characters
to the central computer, when MDM or SMODEM uses some of them
for its own commands:
SURE: ADD A ROUTINE (MDM HAS IT) to have the program take a
character to mean the next character is a command to the modem
program, not a command to send downline in terminal mode.  Then
EVERYTHING not preceeded by that char (I use ^^) is a command
to the computer you are connected to.  That is very necessary
if you want to use, say, EMACS, which uses all the control and
meta characters you can think of.  (The implementation in
MDM is reversed; all control characters are sent to MDM unless
the special character precedes them; I reversed the test to get
the above result.)  Note ^^ is control, up-arrow, or control 6
on some machines.  (P.S.; I switched from that to ^_ since that
is the "down-arrow" key on my TRS-80 Mod II.)

--david--
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