Re: FYI - SIP-H.323 Interworking BOF - sg16-avd

8 Mar 2000

      Dear Colleagues,
It is not a bad idea that people should discuss this item as a small group
depending on their interest.
However, if people have a general interest to discuss it in the SG16
reflector, it is their choice. No one individual or a company should
restrict it. Let us understand the norm of using the SG16 reflector first.
Best regards,
Radhika R. Roy
...
-----Original Message-----
From: Sebestyen Istvan ICN M CS 27 [SMTP:Istvan.Sebestyen@ICN.SIEMENS.DE]
Sent: Wednesday, March 08, 2000 12:57 PM
To:   ITU-SG16@MAILBAG.INTEL.COM
Subject:      Re: FYI - SIP-H.323 Interworking BOF
Importance:   High
Dear Colleagues,
I don't want to hurt anybody,...
but I understand that Martin Euchner is getting a bit inpatient, me too.
It
is really necessary that for an issue that has received in the last ITU-T
SG16 meeting let me say a relatively modest support, now everybody on the
SG16 Reflector has to "listen" the detailed discussion what should be
done,
why, where, when... etc. Would it not be possible that those individuals,
who have an apparent interest in the SIP/H.323 interoperability topic
discuss this first among themselves and the contributions get introduced
only at the next SG16 meeting in May or at least when the contributions
are
finished?
I hope on your understanding.
Many regards,
Istvan Sebestyen

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@icn.siemens.de; istvan@sebestyen.de
E-mail private: istvan_sebestyen@yahoo.com;
Siemens Intranet:http://netinfo.icn.siemens.de/es/team/essp/team/essp4
Siemens FTP:    ftp://mchhpn006a.mch.pn.siemens.de

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...

From:         Roy, Radhika R, ALARC[SMTP:rrroy@ATT.COM]
Reply To:     Mailing list for parties associated with ITU-T Study Group
16
Sent:         Wednesday, March 08, 2000 5:27 PM
To:   ITU-SG16@mailbag.cps.intel.com
Subject:      Re: FYI - SIP-H.323 Interworking BOF
Hi, Everyone:
ITU-T and IETF are the formal standard bodies to create standards for
H.323
and SIP, respectively, and the interworking standard between the two is
also
a part of it..
However, all inputs from other organizations will definitely be
welcomed.
...
Best regards,
Radhika R. Roy
AT&T
...
-----Original Message-----
From: Euchner Martin [SMTP:Martin.Euchner@MCHP.SIEMENS.DE]
Sent: Wednesday, March 08, 2000 4:16 AM
To:   ITU-SG16@MAILBAG.INTEL.COM
Subject:      Re: FYI - SIP-H.323 Interworking BOF
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.

...
...
| Dipl.-Inf.                     Phone: +49 89 636-46201
| Martin Euchner                 Fax  : +49 89 636-48000
| Siemens AG
| ZT IK 3                        mailto:Martin.Euchner@mchp.siemens.de
|                                mailto:martin.euchner@ties.itu.int
| Otto-Hahn-Ring 6               Intranet:
http://zt-security.mchp.siemens.de/de/Competence/Standardization/ITU-T_SG1
...
...
6/
index.html
| D-81730 Muenchen               Internet: http://www.siemens.de
| __________________
| Germany

...
...
    -----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 >>

Re: FYI - SIP-H.323 Interworking BOF

Roy, Radhika R, ALARC

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