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From: zhou@brazil.psych.purdue.edu (Albert Zhou)
Newsgroups: comp.dcom.modems
Subject: MODEM AND CALL WAITING
Message-ID: <11464@j.cc.purdue.edu>
Date: 11 Nov 90 06:20:35 GMT
Sender: news@j.cc.purdue.edu
Reply-To: zhou@brazil.psych.purdue.edu (Albert Zhou)
Organization: Purdue University
Lines: 16


Since my phone is always busy with modem, I ordered a call waiting recently.
However, it doesn't work well. Two problems:
 	(1) The computer does not generate a beep as the telephone does
when there is another call coming. Instead, the screen outputs some strange
characters which can sometimes be ignored, especially when you are not
really attending it.  Nevertheless, this is easily solved by writing a
simple clock-interruption program to capture those characters and generate 
some beeps.

	(2) The second problem is harder. You cannot switch to another
calling without hanging up the modem first. I think it is probably because
I donot fully understand the mechanism of call waiting.

	Solutions to the questions (especially to the second one) are
appreciated!