🚀 go-pugleaf

I don't recall the question to which this is an answer, but it seems
to be talking about setting speeds for an outgoing call.  Cisco
supports the telnet terminal speed option.  If you send terminal speed
on a connection to an outgoing modem, it should adjust the speed.  To
enable this, use the configuration command "telnet speed 9600 9600"
for the terminal line in question.  This says to accept the telnet
speed option for incoming telnet connections to this line, and that
both the maximum and default are 9600.  Obviously for slower modems
you can use other numbers.  Normally this is intended to pass on the
current speed.  E.g. if you are dialed up at 2400 bps on a Unix
machine, and telnet to a dialout port on a cisco box, telnet will pass
2400 bps to the cisco box, and the speed will match automatically.
(This assumes that your telnet supports the speed option, obviously.)
If you need to make a connection at a different speed than your
controlling terminal is set (and it's impractical to use stty to
change the speed), you'll need to hack up telnet to allow an option to
send the speed.