QuickBasic Cafe Forum

I am trying to run terminal.bas on my IBM thinkpad R-31 in order to send AT codes to the built-in modem. The program runs, but I can't open the correct com port to talk to this modem. I want to modify this program to call a phone number on an external alarm. Any suggestions are welcome.

I believe DOS can only see COM ports 1-4, has windows assigned it a higher #?
Also, are you sending a carriage return CHR$(13) at the end of each command?

Check out the `change port` command as well: https://www.microsoft.com/resources/doc ... eport.mspx