sending text
Ed, delays are one way to do it, but a poor way. CIS uses full XON/XOFF flow
control. Your program can send at full speed until it recieves an XOFF (^S).
Then it must wait until it receives an XON (^Q) before continuing. I regularly
do all-out text uploads at 1200 baud — my modem program (CrossTalk XVI –
EyeBeeEm PeeSea) honors flow control.
– Bela Lubkin