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000003_isdn-distribution-owner_Wed Jan 6 10:21:00 1993.msg
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Received: from nac.no ([129.240.2.40]) by relay.cs.toronto.edu with SMTP id <150196>; Wed, 6 Jan 1993 10:20:55 -0500
Received: from comix.atik.no by nac.no with SMTP (PP) id <26617-0@nac.no>;
Wed, 6 Jan 1993 14:48:52 +0100
X400-Received: by mta elc1.atik.no in /PRMD=uninett/ADMD= /C=no/; Relayed;
Sat, 28 Nov 1992 16:37:22 +0100
Date: Sat, 28 Nov 1992 10:37:22 -0500
X400-Originator: isdn-request@teknologi.agderforskning.no
X400-Recipients: non-disclosure:;
X400-MTS-Identifier: [/PRMD=uninett/ADMD= /C=no/;elc1.atik..010:28.10.92.15.37.22]
Priority: Non-Urgent
DL-Expansion-History: isdn@teknologi.agderforskning.no ; Sat, 28 Nov 1992
16:37:22 +0100;
From: Oliver Korfmacher <okorf@netcs.com>
Message-ID: <9211271805.AA02180@keks.netcs.com>
To: isdn@teknologi.agderforskning.no
In-Reply-To: <9211262231.AA00248@parrot.prv.univie.ac.at>
Subject: Re: Telemetry on D-ch, use of unack. info service
X-Mailer: ELM [version 2.2 PL0]
> > > Has anyone any experience using the telemetry channel, any applications
> > > available etc? How reliable is this channel, i.e. can it safely
> > > be used for fire alarms, burgler alarms etc?
> > To extend this: which country/PTT/national ISDN supports data transfer
> > in the D-channel? So far as I know, the austrian PTT offers a kind of
> > X.25 access thru the D-ch.
>
> `a kind of' is as close as they got around here.. In reality you get about
> 11KB/s of X.25 through the 16Kb/s-in-theory D-channel (*when* it works;
> the uptime pattern seems to be a function of the phase of the moon).
Some quite (?) new information from the ExpoNet '92 (Frankfurt/Main):
The german PTT DBP Telekom will offer X.25 access through the D-channel,
9600bit/s by the end of 1993. Using ISDN BRIs is selected to be the
cheapest access path to X.25 networks. There will be a monthly fixed extra
charge (not decided yet how much) added to the base tariff of 74 DM and
the normal X.25 volume charges..
Gruesse, Oliver