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From: wjr@ftp.COM (Bill Rust)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Modem picks up fone (response)
Message-ID: <691@ftp.COM>
Date: 3 Aug 89 02:18:55 GMT
References: <1222@ucf-cs.UCF.EDU>
Reply-To: wjr@ftp.UUCP (Bill Rust)
Distribution: usa
Organization: FTP Software, Inc.
Lines: 31

In article <1222@ucf-cs.UCF.EDU> wordproc@ucf-cs.UCF.EDU (Gang of Three) writes:
|
|
|| /* ---------- "modem picks up phone" ---------- */
|| When my pc-clone is powered up, my 2400 baud hayes-compatible
|| modem insists on picking up the phone (hoping to get a carrier).
|| I don't want this; I want to be able to have the computer on
|| and pick up the phone and respond to voice messages.  How do
|| I fix this?
|
|My next-door neighbor is having the same problem with an old Leading Edge
|machine.  His internal 1200bd seizes the phone line.  We've tried every
|DIP switch combination we can think of, although none of them seem to
|affect that function in the first place.  His normal procedure has been
|to plug and unplug the modem from the wall right when he's ready to have it
|dial a number.
|

If these modems really are Hayes-compatible sending ATS=0\r will turn off
auto-answer. Some of the modems without switches have non-volatile memory
which can store this setting. However, the existence of such memory and
the command to store into it are both very non-standard. You may wind up
having to put something into your autoexec.bat file to send this string to the
modem each time that you re-boot. In some cases you can get by with a mode
command followed by copying a file containing the aforementioned string
(note that '\r' is control-M) and sometimes you can't. Experimenting is the
only way to find out. Also note that the timing of sending characters is
sometimes important (ie send them slowly), but other times it isn't. In short,
good luck.

Bill Rust (wjr@ftp.com)