John, this work is still ongoing in ETSI TISPAN. First publications are already available, see e.g. ETSI TS 183 036 (based from WI-3110).
Albrecht http://www.ietf.org/mail-archive/web/sipping/current/msg15693.html > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Hearty, John > Sent: Freitag, 29. August 2008 18:02 > To: [email protected] > Subject: [Sip-implementors] BRI-SIP gateways and standards > > After exhaustive searching, I have been unable to find any > standards for interworking ISDN supplementary services to SIP > (Call Forwarding, Transfer, 3-Way calling, Call Waiting, > Hold, etc. as described in Q.932 and the Q.730 series and > Q.950 series docs as well as other docs covering NI-2, 5ESS > variants, etc.). The closest I have found is Q.1912.5, but > for supplementary services it refers to other Q.73x standards > that basically say drop the feature indicator, i.e. don't > interwork. I found reference to ETSI DEN/TISPAN-03012-NGN-R1 > work item that covers DSS1-SIP interworking for ISDN basic > call and supplementary services, but the status page shows > the work item has been stopped, with the last deliverable > being a draft in 2003 (that I can't find). The Rapporteur > listed was Peter Kotar who also wrote > draft-kotar-sipping-dss1-sip-iw-01 which expired in 2004 and > notes supplemental services is out of scope of the document. > > I've also looked around for off the shelf BRI-SIP gateways > and none appear to support supplemental services. If anyone > knows of gateways supporting supplementary services > specifically for 5ESS, NI-2 and DMS-100 variants, or any > standards covering this interworking I'd appreciate a pointer. > > John Hearty > Voice Architect > Level 3 Communications, LLC > 1025 Eldorado Blvd > Broomfield, CO 80021 > 720-888-2161 > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
