From owner-freebsd-hackers  Thu Dec 22 08:10:31 1994
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Date: Thu, 22 Dec 1994 11:09:12 -0500
From: kelly@fsl.noaa.gov (Sean Kelly)
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To: burg@burg.is.ge.com
Cc: bde@zeta.org.au, hackers@freebsd.org
In-Reply-To: <9412221225.AA22425@ns.GE.com> (message from Dick van den Burg on Thu, 22 Dec 1994 13:21:24 +0100)
Subject: Re: bidirectional ports ?
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>>>>> "Dick" == Dick van den Burg <burg@burg.is.ge.com> writes:

    Dick> man sio says: The callout device is used to steel the port
    Dick> from processes waiting for carrier ...  This does not
    Dick> happen: I get the busy message.

Does your modem keep carrier-detect always on?

--k