When I say "a non-standard add-on", I'm referring to the process which standards go through (I have served on a few standards committees through the years, from distributed computing - NCS, to printer languages - PCL, to bank check standards - ANSI X9B (now X9AB)). D-STAR as a protocol, went through a standardization process (though fairly limited, since the JARL didn't seek broad input and consensus). To "extend" the protocol, would require a review by the recognized standard setting body for the protocol, which to this point is exclusively the JARL, to become formalized. DPLUS (and DEXTRA) linking have not gone through that process and are the result of a single person's efforts (and copying of the same), who retains full design and architectural control. This doesn't discount the hard work performed, nor the general acceptance of that work, even to the point that it has become a "de facto" standard on most gateways. However, it is not an extension of the protocol, but rather an application built upon and adjunct to the JARL protocol standard.

It would be good for the hobby, to put the "ownership" of the standard into a larger, international forum, with key contributors from the larger community, then the standard could be extended for universal acceptance, following discussion and balloting. This could be started by publishing the full specification in internationally recognized languages, including English.

In the absence of this pragmatic disclosure, people will invent things that may or more likely may not comply with the D-STAR standard specification as original codified by the JARL. I have been told that the JARL has specified the controller to gateway, and gateway through Internet protocols as well as the on air protocol (which we do have translated documentation for), but it is unreadable by the majority of the international community. If what Icom has created in their gateway is truly in the JARL specification, then it demonstrates the total lack of knowledge of distributed, real time systems (not to mention japanese centric aspects) and cries out even more for a broader oversight. If not, then it could be cleared up and cleaned up by a committee made up of experts in the field, who are also active D-STAR community members.

john_ke5c wrote:
> Just to be clear, routed calls are not "Icom routed" calls, they are native to the D-STAR protocol. The Icom gateway implements them. DPLUS linking is a non-standard add-on, widely deployed and accepted by the users, but not native to the protocol.
>
> DE K7VE

More later, but just to be really clear, dplus is a DStar extension, not an add-on. Nothing in the DStar protocol prohibits extensions, so to say dplus is "non-standard" is a non sequitur. Dplus adds features to the DStar environment which overall are "accepted",


--
John D. Hays
Amateur Radio Station K7VE <http://k7ve.org>
PO Box 1223
Edmonds, WA 98020-1223
VOIP/SIP: [email protected] <sip:[email protected]>
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