Path: utzoo!utgpu!water!watmath!clyde!att!whuts!homxb!homxc!gauss
From: gauss@homxc.UUCP (E.GAUSS)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Call waiting and modems??
Summary: No perfect solution
Message-ID: <3726@homxc.UUCP>
Date: 6 Oct 88 19:36:44 GMT
References: <8876@watdragon.waterloo.edu>
Organization: AT&T Bell Laboratories, Holmdel
Lines: 20

In article <8876@watdragon.waterloo.edu>, sjflim@trillium.waterloo.edu (SJF LIM) writes:
> I have a Call waiting feature installed on my phone, (assume everybody knows
> what is Call waiting), this is a very nice feature because I don't have to
> worry about "busy" tone to the person who is calling me.  Until I've found
> out that Calling waiting and modem cannot exist together. 

I ran a similar question though an AT&T internal bboard.  There is no simple
fix.  Depending upon which telephone equipment is in your local telephone
plant, and how it is marketed, you can get a feature that will enable you
to turn off call-waiting while your computer call is up.  Then your friend
gets the hated busy tone.  If call-waiting is active, your host is going
to disconnect when the circuit between your modem and the host is opened
while the call-waiting bleep is injected.

Now if your local phone company has ISDN and you have an ISDN line, the
whole problem goes away.

Ed Gauss
  Advanced Planning
  AT&T