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000071_isdn-distribution-owner_Thu Sep 30 05:57:43 1993.msg
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Received: from nac.no ([129.240.2.40]) by relay.cs.toronto.edu with SMTP id <428514>; Thu, 30 Sep 1993 05:57:33 -0400
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Date: Thu, 30 Sep 1993 04:47:29 -0400
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From: Oliver Korfmacher <okorf@netcs.com>
Message-ID: <9309300846.AA27941@keks.netcs.com>
To: /S=JMREILLY/OU=CCVAX/O=UCD/PRMD=NRN/ADMD=Eirmail400/C=ie/@teknologi.
agderforskning.no
Cc: isdn@teknologi.agderforskning.no
In-Reply-To: <D143D6351F7F601D1A@ccvax.ucd.ie>
Subject: Re: your mail
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> I am currently working on a research project concerning a new Programming
> Communications Interface (PCI) recommendation for ISDN that is currently
> being finalised by the European Telecommunications Standards Institute (ETSI).
> This recommendation defines a manufacturer independent programming interface
> for the forthcomming European variant of ISDN calls Euro-ISDN.
> The project has produced a prototype implementation of the mandatory features
> of the ETSI PCI on a PC with MSDOS.
>
> I would like to establish what approach the ISDN terminal equipment
> manufacturers are taking to this new recommendation; do they intend to
> implement it in place of (or as well as) their existing ISDN APIs or do they
> consider it to be too complex ? Any comments or information about this
> recommendation would be much appreciated.
>
> There are several other current programming interfaces related to ISDN such
> as the German Common ISDN API (CAPI), the Application Software Interface (ASI)
> defined by the North American ISDN Users Forum and the APPLI/COM interface
> defined by the CCITT. I would like to know what the current status of any of
> these recommendations is, and indeed if there are any other non proprietary
> application programing interfaces relating to ISDN in existance.
>
> If anyone is seeking information on the above recommendations I would be
> please to pass on what information I have.
>
> John Reilly
In my opinion, the PCI is bad. a) it is strongly there due to political
and national reasons, not so much due to technical ones. b) there was no
real possibility to influence the development, since all non-trivial or
non-minor changes were denied with "In the phase of the design/standardisation
process, we can't do it". The german Telekom initially vote for it,
disregarding its earlier efforts with the CAPI. The CAPI IMHO is not the
best solution, but it is better than the PCI which doesn't even have
all the functionality needed.
Predicting the future, I guess that the PCI will not become an important
and accepted standard. The idea to create such a thing was good, but ..
So far as I know at least the german hardware or software manufacturers
(and we are a software manufacturer heavily involved in these fields),
there is no strong movement to the PCI.
Perhaps some govermental projects can create a need for it, but I doubt
even on this.
Oliver
Oliver Korfmacher (okorf@netcs.com, whois OK11)