Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!tellab5!wiseman
From: wiseman@tellabs.com (Jeff Wiseman)
Newsgroups: comp.sys.mac.misc
Subject: Re: Re: Disable Call Waiting? (tougher question)
Summary: A bandaid
Message-ID: <3859@tellab5.tellabs.com>
Date: 18 Sep 90 17:49:07 GMT
References: <1990Sep14.031451.19329@ecst.csuchico.edu> <6267@bgsuvax.UUCP>
Sender: news@Tellabs.COM
Organization: Tellabs, Inc. Lisle IL
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In article <6267@bgsuvax.UUCP> denbeste@bgsuvax.UUCP (William C. DenBesten) writes:
>This would disable call waiting for the host computer's modem line.  I'm
>sure that the system administrator does not suscribe to call waiting.
>The only real solution to this problem would be #3 or #4.

Here's something that you might consider. When I'm using my modem I am usually:

A) just commanding and watching or

B) downloading/uploading

"A" is not critical FOR ME. If I get the tone on my phone
indicating that a call is
coming in, it doesn't do much damage. Wait long enough and the caller figures
your unable to answer the phone (a correct assumption since you're already on
it :-).

"B" is critical but whenever I do it, I do not use streaming. I use a protocol
that can handle the bumps (kermit, x,y,z modem, you name it).

The real problem is that with nornal defaults on hayes type modems, the tone
comming in to signal the call interrupts the carrier that you are communicating
with. This causes the modem to (when it sees that the carrier is gone) drop the
call. Nasty. Anyone phoning in can interrupt your session.

HOWEVER

There is a parameter register for the modem (I fergit which one it is off
hand..read your manual :-) that you can INCREASE the "carrier missing" delay to
(say) 20 or 30 seconds. Now the missing carrier will not result in the session
being dropped, only the loss of some data during the incoming tone (ie.
"ringing") cycle.

This works for me anyway, I supose it depends on your application.

Hope this helps


--
Jeff Wiseman:	....uunet!tellab5!wiseman OR wiseman@TELLABS.COM