RE: [Sip] about H.323 and SIP

Dear colleagues,

since I have started this discussion about the SIP vs. H.323, please let 
me very briefly explain my motivation.
Firstly, my intention was not to offend anybody here. I just wanted to 
express purely technical/protocol design background.
The truth really is, that H.323 has strong telephony/ISDN roots. However 
the truth also is that H.323 has still several advantages over SIP.
I don't want to extend my explanation on, which features I mean here, as 
this is the SIP mailing list (you can e-mail me on my address directly if 
needed).
Please, if anybody feels hit at the heart, I appologize, perhaps I should 
be more carefull with the wording.

Kind regards

D.I. Peter Gajdos

"Agboh, Charles" <Charles.Agboh@ebone.com>
Sent by: sip-admin@ietf.org
09/14/2001 09:50 AM

        To:     "'Na Li'" <lina@ashleylaurent.com>, sip@ietf.org
        cc: 
        Subject:        RE: [Sip] about H.323 and SIP

> -----Original Message-----
> From: Na Li [mailto:lina@ashleylaurent.com]
> Sent: Thursday, September 13, 2001 5:12 PM
> To: sip@ietf.org
> Subject: FW: [Sip] about H.323 and SIP
> 
> 
> 
> 
> -----Original Message-----
> From: Peter.Gajdos@proin.com [mailto:Peter.Gajdos@proin.com] 
> Sent: Thursday, September 13, 2001 3:51 AM
> To: Na Li
> Subject: Re: [Sip] about H.323 and SIP
> 
> 
> Hi Lina, 
> 
> to your questions: 
> 
> 1) The fundamental difference is in the model these two use - as you
> probably know the SIP uses the Internet model - transaction oriented
> (IETF) while H.323 uses "old-style" circtuit switched 
> thinking (ITU-T). 
I wonder if this sort of comment is really necessary.
> 2) This is implementation specific. I can say that they are vendors
> whose equipment can do exactly what you write (incl. the 
> situation when
> H.323 is replaced by SIP). 
In my opinion, the two protocols will coexists in the foreseeable future.
More than that, I cannot say.

>3) There's no standard, but as far as I remember there is a draft
> dealing with this: draft-agrawal-sip-h323-interworking-01.txt 
> 
> Kind regards 
> 
> --Peter 
> 
> 
> 
> 
> "Na Li" <lina@ashleylaurent.com> 
> Sent by: sip-admin@ietf.org 
> 09/13/2001 02:15 AM 
> 
>         To:        <sip@ietf.org> 
>         cc: 
>         Subject:        [Sip] about H.323 and SIP
> 
> 
> 
> Hello,
> 
> I have several questions relating to H.323
> 
> 1) What's the fundamental difference between H.323 (including fast
> setup) and SIP? I don't mean the text encoding or ANS.1 encoding. 
> 2) Could Media gateway controller use H.323 for session creation, and
> use Megaco to communicate with media gateway?
> 3) Is any standard there to map H.323 with SIP?
> 
> Thanks, have a nice day
> 
> Lina
> 
> _______________________________________________
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> 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 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 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