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Date: Tue, 2 Jan 1996 10:49:34 -0800 (PST)
From: Donald Burr <d_burr@ix.netcom.com>
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To: Stephen Couchman <scouch@io.org>, questions@freebsd.org
Subject: Re: iijpp STILL cannot talk to my modem :-((
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On Tue, 2 Jan 1996, Donald Burr wrote:

> [...my solution...]

To further elaborate, when you used tip and cu to access your modem, it 
worked, because AFAIK tip/cu don't indiscriminately set crtscts on the 
port they're accessing.  In fact, most programs don't.  This is why 
/etc/rc.serial exists, so that default parameters for each serial port 
can be set.  If you had a high speed modem and tried using it with 
tip/cu, CRTSCTS would not be enabled, and because the modems weren't 
handshaking, you'd end up with a lot of lost data and other nastiness due 
to the high modem speed.