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From: skgupta@iastate.edu (Gupta Sharad Kumar)
Newsgroups: comp.os.msdos.programmer
Subject: Help needed on serial port programming
Message-ID: <1991Mar19.052603.8737@news.iastate.edu>
Date: 19 Mar 91 05:26:03 GMT
Sender: skgupta@iastate.edu
Organization: Iowa State University, Ames, IA
Lines: 13

I am building an electronic bulletin board for a research project. I have
a modem connected to one serial port(COM1) of my Zenith 386 machine and a
device called DECtalk (converts text to speech) to the other port(COM2).
I have written an interrupt driven program to handle the incoming calls.
My question is that is it possible to connect both the devices to the same
phone line (i.e. is it possible to distinguish whether the incoming phone 
call is for device connected to COM1 or for the device connected to COM2)? 
If yes, then how can I do this? I will greatly appreciate any help in this
context.

                                                   Sharad Gupta
                                                   skgupta@iastate.edu