Hi, Everyone:
We are all aware that many works related to H.323-SIP Interworking works are
being proposed including IMTC and TIPHON. I am also in touch with Ayse
Dilber of AT&T. These organizations are primarily chartered for
interoperability agreements, testing, etc. and do NOT create standards per
se. Like TIPHON, they are willing to send a liaison to the ITU-T SG16
recommending the requirements.
In the same fashion, TIPHON and IMTC are also working for H.323 mobility
works. That does not mean that the SG16 should not do the H.323 mobility
work.
The H.323 and SIP standards are created by the ITU-T and IETF, respectively
and these standards organizations are the right bodies to create the
standards that are recognized internationally.
I am again quoting from decision taken in the last SG16 meeting TD-74
(Plen), Section 3.8.5.1, p-48:
"... Invite contributions on how to approach the work. Need to get scenarios
for progressing work in a controlled architectural approach. Ms. Levin has
volunteered to draft a framework. ..."
We are proceeding to work along this line in the SG16.
Best Regards,
Radhika R. Roy
AT&T
+1 732 420 1580
rrroy(a)att.com
> -----Original Message-----
> From: Sebestyen Istvan ICN M CS 27 [SMTP:Istvan.Sebestyen@ICN.SIEMENS.DE]
> Sent: Friday, February 25, 2000 9:27 AM
> To: ITU-SG16(a)MAILBAG.INTEL.COM
> Subject: Re: [H.323-SIP/Internet] The reason.
> Importance: High
>
> Dear Colleagues,
> I was present at the SG16 meeting, and have also read now carefully the
> meeting report. There is really at this point in time in the ITU no new
> "workitem" or "question" open for this work. Certainly this might change
> if
> based on contributions SG16 decides so.
>
> You might, however, be interested that in the IMTC a lot of very similar
> work is already being done.
> Have a view of the program of the aHIT! Working Group (chaired by Ayse
> Dilber (adilber(a)att.com)) of AT&T), described below.
> I am sure Ayse will be more than happy to see more active co-workers
> pushing
> the work of aHIT! ahead. The aHIT! program was approved within the IMTC in
> November 1999, and now it is running full speed.
>
> Kind regards,
> Istvan sebestyen
>
>
>
>
>
> aHIT! AG's Objectives:
>
> - Identify VoIP and Multimedia Applications (i.e., VoIP, FoIP,
> Conferencing,
> Instant Messaging, etc.) which will enable service providers to implement
> end-to-end services;
> - Identify Interworking Scenarios (i.e., between H.323 and
> SIP/H.248-MEGACO/cable/etc.) to achieve interworking between different
> protocols to support multi-vendor and multi-service provider environments;
> - Develop technical interoperability documents per application and per
> scenario to guide service providers and vendors to implement seamless,
> secure, global VoIP and Multimedia Applications;
> - Encourage, define and participate in global VoIP and Multimedia
> applications trials between member service providers and vendors
> - Provide a forum for open technical exchange;
> - Support, promote and participate in IMTC/ETSI testing events.
>
> aHIT! AG Work Plan:
>
> 1) Define technical lower layer communications capabilities and protocols
> for each application.
> 2) Work on interworking between H.323 and SIP/NCS/H.248-MEGACO.
> 3) Introduce the value-added functionalities and enhanced services.
> 4) Develop and publish technical interoperability documents per
> application/scenario starting from 2Q00.
>
> aHIT! AG will address the following issues for each application,:
>
> Performance/QoS
> Reliability
> Naming/Numbering/Addressing
> Settlements/Billing
> Fax Support
> OAM&P Support
> Number Portability
> Interworking Issues(i.e.,H.323/SIP/MEGACO/NCS and CCS/PSTN)
> Enhanced Services (i.e., roaming)
>
>
>
> --------------------------------------------------------------------------
> Dr. Istvan Sebestyen
> Siemens AG, ICN M CS27,
> Hofmannstr. 51 D-81359 Munich
> Tel:+49-89-722-47230
> Fax:+49-89-722-47713
> E-Mail office: istvan.sebestyen(a)icn.siemens.de; istvan(a)sebestyen.de
> E-mail private: istvan_sebestyen(a)yahoo.com;
> Siemens Intranet:http://netinfo.icn.siemens.de/es/team/essp/team/essp4
> Siemens FTP: ftp://mchhpn006a.mch.pn.siemens.de
> --------------------------------------------------------------------------
> --
> ----------------
>
> > ----------
> > From: Roy, Radhika R, ALARC[SMTP:rrroy@ATT.COM]
> > Reply To: Mailing list for parties associated with ITU-T Study Group
> > 16
> > Sent: Friday, February 25, 2000 1:58 PM
> > To: ITU-SG16(a)mailbag.cps.intel.com
> > Subject: Re: [H.323-SIP/Internet] The reason.
> >
> > Hi, Everyone:
> >
> > I am in full agreement with Orit. I guess that this has also been the
> case
> > for many people who had been present in the SG16 meeting.
> >
> > More importantly, when I talked to Glen, he clearly indicated that we
> > should
> > bring contributions to get the work started. The interworking between
> > H.323
> > and SIP may belong Q.14 (although it has to be discussed jointly with
> Q.13
> > and Q.14).
> >
> > There has been a very strong interest for the work of H.323-SIP
> > Interworking. A large number of people throughout the world (starting
> from
> > the ITU-T and IETF) is contacting me.
> >
> > The primary goal of the standard bodies is to provide
> "INTEROPERABILITY."
> >
> > Best regards,
> > Radhika R. Roy
> > AT&T
> > +1 732 420 1580
> > rrroy(a)att.com
> >
> >
