H.323 URL

Callaghan, Robert Robert.Callaghan at icn.siemens.com
Wed Jun 14 15:50:08 EDT 2000


In my opinion, an email-ID alias conforms to RFC-822 and is interpreted
according the rules stated in H.225.0.  An H.323-URL-ID conforms to
TD-40a/Osaka and is interpreted according to the rules stated in TD-40a.  An
H.323-ID is a character string without any rules of interpretation.  I see
no need to blend these contexts.  All three addressing modes can be use;
each in its own context.

However, these are my opinion.  Maybe more work is needed in Portland.


Robert Callaghan
Siemens Enterprise Networks
Tel: +1.561.923.1756	Fax: +1.561.923.1403
Email:	Robert.Callaghan at ICN.Siemens.com

-----Original Message-----
From: Orit Levin [mailto:orit at radvision.com]
Sent: Wednesday, June 14, 2000 11:45 AM
To: Callaghan, Robert; 'Paul E. Jones'
Cc: Mailing list for parties associated with ITU-T Study Group 16
Subject: Re: H.323 URL

Hello Bob and Paul!
I don't see backwards compatibility problem, when the URL says explicitly
H323-URL. An appropriate change may be to state, that the default meaning of
url, encoded into email-ID alias, is according to RFC-822.
Now, I feel a need to put a chapter explaining what is the meaning of email
URL (apart from its syntax) when used in H.323 Network. There is some
explanation in H.225.0 Appendix IV. Do you find it clear and sufficient?
Orit Levin
RADVision Inc.
575 Corporate Drive Suite 420
Mahwah, NJ 07430
Tel: 1 201 529 4300  (230)
Fax: 1 201 529 3516
orit at radvision.com
-----Original Message-----
From: Callaghan, Robert <Robert.Callaghan at icn.siemens.com>
To: 'Paul E. Jones' <paulej at PACKETIZER.COM>; 'Orit Levin'
<orit at radvision.com>
Cc: Mailing list for parties associated with ITU-T Study Group 16 (E-mail)
<ITU-SG16 at mailbag.cps.intel.com>
Date: Wednesday, June 14, 2000 9:56 AM
Subject: H.323 URL

>I have a backward compatibility item for you to think about.
>TD-40/Osaka states that the H323-URL may be coded into the email-ID for
>alias address.  However, H.225.0 states that the email-ID shall conform to
>RFC822.  This is an exclusionary requirement in that other standards may
>be used.  Also, Note 4 of the BNF definition of the H323-URL clearly states
>that that the H323-URL is *not* compatible with RFC822.
>Therefor, I propose that the H323-URL cannot be coded into the email-ID for
>alias address because of compatibility problems.
>Robert Callaghan
>Siemens Enterprise Networks
>Tel: +1.561.923.1756 Fax: +1.561.923.1403
>Email: Robert.Callaghan at ICN.Siemens.com

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