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From: scotto@pnet01.cts.com (Scott O'Connell)
Newsgroups: comp.dcom.modems
Subject: Re: cancelling call waiting
Message-ID: <1984@crash.CTS.COM>
Date: Tue, 10-Nov-87 12:57:44 EST
Article-I.D.: crash.1984
Posted: Tue Nov 10 12:57:44 1987
Date-Received: Fri, 13-Nov-87 06:45:40 EST
Sender: news@crash.CTS.COM
Organization: People-Net [pnet01], El Cajon, CA
Lines: 21

Pacific Bell in California uses *70 to cancel call waiting for the duration of
the following call.  There is a pulse equivalent but I don't know what it is
and it's not explained in the phone book.

Another way around loosing your connection is to set the LOST CARRIER TO
HANGUP DELAY at 2 sec.  This may be changed depending the duration of the BEEP
tone you hear when another call in coming in.  Since the long BEEP is only on
your receive line, your modem should be the only one needing this change.  The
remote end just hears a CLICK.  This click is short enough not to affect the
remote modem.

Obviously all modems can't be programmed for this delay.  On Hayes (and most
compatibles) the register S10 is where you want to diddle.  Some compatibles
use a default and only have the register there for compatibility.  When in
doubt, try a Hayes -- I know it works like I described.
I hope this helps.

Scott O'Connell - Datagram Corp.   UUCP: {cbosgd hplabs!hp-sdd sdcsvax nosc}...
3297 Sweetwater Springs Blvd #8          ...!crash!pnet01!scotto
San Diego, CA 92078-1477           ARPA: crash!pnet01!scotto@nosc.mil
800/235-5030                       INET: scotto@pnet01.cts.com