just for your information for those interested in H.323/SIP:

I would like to draw your attention to an activity group already debating H.323-SIP interworking for quite a while: IMTC aHIT!. To my knowledge they already came out with some first results on architectures and interworking scenarios. Please get in touch with this group and consider their results. see also http://www.imtc.org/act_ahit.htm http://www.imtc.org/act_ahit.htm and discussions on their mailing list.

Thus, it appears to me that there are already quite a few groups (IETF, IMTC, ETSI) discussing H323/SIP interworking. I do not quite see necessity to have ITU-T SG16 as yet another group for this topic.

regards

Martin.

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-----Original Message----- From: Joon Maeng [SMTP:joon_maeng@VTEL.COM] Sent: Saturday, March 04, 2000 6:56 PM To: ITU-SG16@mailbag.cps.intel.com Subject: Re: FYI - SIP-H.323 Interworking BOF

Roy, you your are right. It is focused on the SIP and H.323 interworking. I attached the tentative agenda for the BOF. Depending on the speakers we identify, the agenda may inlcude some presenters but the main focus will not be modified. Regards, Joon

------------------------------------------------------------------------ BOF: SIP and H.323 Interworking (sip323) Area: Transport Time requested: one 1 hour slot Chairs: Joon Maeng joon_maeng@vtel.com Dave Walker drwalker@ss8networks.com

Description:

There are two competing standards in the industry for establishing and managing real-time interactive media communications over IP. One is the proposed IETF standard, Session Initiation Protocol (RFC 2543), and the other is the ITU recommendation, H.323. Although they use the same protocol (RTP) for media streaming, they cannot establish calls between them. In the absence of any formal interoperability standards, many vendors are beginning to develop proprietary application gateways for interworking between SIP and H.323.

In order to provide interoperability between the two standards, it is urgent to define a common interworking specifications for the industry. The recognition of the need for this interworking specification has lead to calls for its development from both manufacturers and service providers, individually and through industry consortia (such as IMTC) and other bodies concerned with interoperability (such as ETSI).

In this BOF, we are going to discuss SIP and H.323 interworking issues, execution plans and the scope of the work.

Agenda:

- Do we need SIP-H.323 interworking? - Coordination with other groups? - Scope of interworking - Outcome of the work? - Suggestions?

Helpful reading: - draft-singh-sip-h323-00.txt - SIP: Session Initiation Protocol (RFC 2543) - SDP: Session Description Protocol (RFC 2327) - ITU recommendations: H.323, H.225.0, H.245

> -----Original Message----- > From: Roy, Radhika R, ALARC [mailto:rrroy@att.com] > Sent: Friday, March 03, 2000 3:12 PM > To: ITU-SG16@mailbag.cps.intel.com > Subject: Re: FYI - SIP-H.323 Interworking BOF > > > Hi, Everyone: > > It appears that BOF is focused only on SIP-H.323 Interworking (not > H.323-Internet Interworking as titled by Orit). I guess that > Joon and Dave > will clarify this better. > > Best regards, > Radhika R. Roy > AT&T > > > -----Original Message----- > > From: Orit Levin [SMTP:orit@radvision.com] > > Sent: Friday, March 03, 2000 3:57 PM > > To: ITU-SG16@MAILBAG.INTEL.COM > > Subject: Re: FYI - SIP-H.323 Interworking BOF > > > > Great! > > I am attaching the revised so far TOR. Please, send your comments. > > Hope you will find it useful in Australia. > > Best regards, > > Orit Levin > > RADVision Inc. > > 575 Corporate Drive Suite 420 > > Mahwah, NJ 07430 > > Tel: 1 201 529 4300 (230) > > Fax: 1 201 529 3516 > > www.radvision.com > > orit@radvision.com > > -----Original Message----- > > From: Joon Maeng joon_maeng@VTEL.COM > > To: ITU-SG16@MAILBAG.INTEL.COM ITU-SG16@MAILBAG.INTEL.COM > > Date: Thursday, March 02, 2000 8:18 PM > > Subject: FYI - SIP-H.323 Interworking BOF > > > > > > >Hi folks. There will be a SIP-H.323 Interworking BOF at > the IETF meeting > > in > > >Australia. Dave Walker with SS8 Networks and I will chair > the BOF. You > > can > > >find the agenda at http://www.ietf.org/meetings/IETF-47.html when IETF > posts > >agendas. > >Regards, > >Joon << File: H323-Internet.zip >>