Some things I noticed offhand.
 
Does your modem know (or care) what baud rate your DTC port is using?
 
Is it a modem port?
 
If not, you may have to cheat the modem by wiring a cable that makes the
modem "think" it is a modem port with DTC high.
 
Try creating a program that uses the FCONTROL intrinsic to send the string
to the port.
 
Or set up the port as a printer, instead an spool the string out.
 
If you're in the mood for play, hook up a dumb terminal to the port and see
what character strings come out when you invoke your character string.  Set
"display functions" on.
 ----------
From: owner-hp3000-l
To: Multiple recipients of list HP3000-L
Subject: USING HP3000 TO DIAL MODEM
Date: Saturday, September 07, 1996 9:13AM
 
Can anyone help with making my HP3000 dial out a phone number to my pager.
The modem is connected to a port on a DTC72.  I would like to send at
commands
to dial my pager.
 
I have tried a file equasion with an echo atdt(phone number) >>*backward
reference but I get a FSERR 68
 
Any suggestions would be appreciated.
 
Jack Calandra
Manager HR Systems
American International Group, Inc.
New York, N.Y.