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Date:      Thu, 10 Feb 2000 20:33:03 +0100 (MET)
From:      hm@hcs.de (Hellmuth Michaelis)
To:        jan@sparud.net (Jan Sparud)
Cc:        garyj@muc.de, freebsd-isdn@FreeBSD.ORG
Subject:   Re: Answering machine interrupting other channel
Message-ID:  <20000210193303.764A538C2@hcswork.hcs.de>
In-Reply-To: <14498.45514.357524.717667@hinken.sparud.net> from Jan Sparud at "Feb 10, 0 01:40:42 pm"

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From the keyboard of Jan Sparud:

> 2) It's enough for the answering machine to start and then stop
>    immediately, the ppp connection is still frozen until it time-outs
>    a minute later, even if there is no traffic on the voice channel.
> 
> It seems that something happens internally in isdnd when it forks and
> execs the answering machine program (mine is a C program; I tried with
> the answer.sh in contrib/ too with the same results).
> 
> Am I the only one seeing this?

I __think__ i have seen something like this. Sometimes, very, very seldom,
when i use one channel and then open up another channel to a different
destination (both using the ipr driver) i think (!) i noticed that the
first channel stopped exchaning data for some 2, 3 or 5 seconds.

I have no idea what might cause this, it occurs so seldom und non-
reproducible that i didn't care for it. More, i'm not shure if even my
own observation was right.

If something like this is indeed happening, there is a good chance that
it might be a race condition somewhere, somehow, sometimes, some.....

hellmuth
-- 
Hellmuth Michaelis                                    Tel   +49 40 559747-70
HCS Hanseatischer Computerservice GmbH                Fax   +49 40 559747-77
Oldesloer Strasse 97-99                               Mail  hm [at] hcs.de
22457 Hamburg                                         WWW   http://www.hcs.de


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