Well, we can have the Abstract-Syntax, but shall we mot need to define a new "encoding rule" to get the ISUP encoding, which is neither BER/DER/CER/PER/XER ?
- b.dutta > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Steen Oluf Karlsen > Sent: Sunday, February 27, 2005 8:49 PM > To: Olivier Dubuisson; Casper > Cc: [email protected] > Subject: RE: [ASN1] ASN.1 spec for ITU ISUP Q.763 > > ASN.1 mailing List > Casper > Olivier Duboisson > > I did a lot of work on this topic around 1991-92 after having > coded a TCAP and MAP (Mobile Application Part) > encoder/decoder for a protocol analyser firm. > > The ISUP was of prime importance for 20ieth century telecom. > > I do not know about the 21. century but I am interested in > hearing views on this ? > > I noticed that Siemens in their development efforts had one > man dedicated to hunt an abstract level definition of the ISUP. > > These efforts were combined with others to form ASN.1/ECN. > (Pls. update/correct me if needed). > > It would be a great thing to have an open doc. that described > the ISUP in ASN.1/ECN but I am aware that it must have cost > some man hours to develop so it can parse and generate > encoders /decoders that will go down the line and integrate > with TCSP, MAP etc. > > I have no connections with protocol analyser firms, telecomms > black boxes manufacturers etc. I work as a high school > teacher in maths/phys/computer science and I act as telecomms > advisor in my one man firm now. > > I would be delighted to take on the task of writing a public > ISUP definition in ASN.1/ECN if anyone would pay me. > But I realise it would be quite some task. > > Steen Oluf Karlsen > S�holtvej 6 > Vester Vandet > DK-7700 Thisted > Danmark > Tel +45 97 97 72 72 > email [EMAIL PROTECTED] > > > > > > > > Casper wrote: > > > Hi All, > > > > > > Are there ASN.1 specification files for ITU ISUP messages > > (like TCAP asn.1 > > > at ITU site)? > > > > As you can see by yourself at > > http://www.itu.int/ITU-T/asn1/database/itu-t/q/index.html > > the answer is NO! > > -- > > Olivier DUBUISSON > > > > > _______________________________________________ > ASN1 mailing list > [email protected] > http://lists.asn1.org/mailman/listinfo/asn1 > _______________________________________________ ASN1 mailing list [email protected] http://lists.asn1.org/mailman/listinfo/asn1
