RE: [Sip] about H.323 and SIP
"Michel A. Maddux" <madflatpicker01@rmi.net> Fri, 14 September 2001 15:50 UTC
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Reply-To: madflatpicker01@rmi.net
From: "Michel A. Maddux" <madflatpicker01@rmi.net>
To: 'Paul Long' <plong@ipdialog.com>, sip@ietf.org
Subject: RE: [Sip] about H.323 and SIP
Date: Fri, 14 Sep 2001 08:52:29 -0600
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Paul Long writes: If the H.323 endpoint is unregistered or uses the direct call model and pregranted ARQs, only a single message (Setup) is necessary in H.323 to setup a call. -------------- Hmmm, and yet, the need to have the pre-granted ARQ is part of the call setup sequence... and in fact, depending upon exactly how the Gatekeeper bandwidth management is provided, could itself cause some problems. For example, if 1000 endpoints all request a pre-granted ARQ (this is after registration sequence and etc...), and the Gatekeeper allows only 1000 calls - no calls are in progress at that time, and yet the gatekeeper could disallow the next request. Clearly, pre-granted ARQ and Fast Start are examples of the changes to the original H.323 spec which were specifically designed to address the issues of excessive message traffic. My comment to Lina in the original post was not intended to describe the many intricacies of the two protocols (because I believe that they both have a place in the industry), rather to point out what I believe to be the fundamental difference between them - pursuant to the question. thanks. /m. _______________________________________________ Sip mailing list http://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use sip-implementors@cs.columbia.edu for questions on current sip Use sipping@ietf.org for new developments on the application of sip
- [Sip] about H.323 and SIP Na Li
- RE: [Sip] about H.323 and SIP Michel A. Maddux
- FW: [Sip] about H.323 and SIP Na Li
- RE: [Sip] about H.323 and SIP Cullen Jennings
- RE: [Sip] about H.323 and SIP Paul Long
- RE: [Sip] about H.323 and SIP Paul Long
- Re: [Sip] about H.323 and SIP Matt Holdrege
- RE: [Sip] about H.323 and SIP Henry Sinnreich
- RE: [Sip] about H.323 and SIP Paul Long
- RE: [Sip] about H.323 and SIP Henry Sinnreich
- RE: [Sip] about H.323 and SIP Agboh, Charles
- RE: [Sip] about H.323 and SIP Peter.Gajdos
- RE: [Sip] about H.323 and SIP Michel A. Maddux
- RE: [Sip] about H.323 and SIP Paul Long
- RE: [Sip] about H.323 and SIP Rosen, Brian
- Re: [Sip] about H.323 and SIP Suheel Hussain
- RE: [Sip] about H.323 and SIP Naidu, Venkata
- Re: [Sip] about H.323 and SIP Henning G. Schulzrinne
- RE: [Sip] about H.323 and SIP Naidu, Venkata
- RE: [Sip] about H.323 and SIP Paul Long
- RE: [Sip] about H.323 and SIP De Leo Walter
- RE: [Sip] about H.323 and SIP Matt Holdrege
- RE: [Sip] about H.323 and SIP De Leo Walter