IETF Logo Mail Archive

[Sip] INFO message belongs only to INVITE dialog usage?

Nina Garaca <nina.garaca@zesium.com> Thu, 31 May 2007 09:19 UTC

Return-path: <sip-bounces@ietf.org>
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Htgp2-0006ZN-MX; Thu, 31 May 2007 05:19:56 -0400
Received: from sip by megatron.ietf.org with local (Exim 4.43) id 1Htgp0-0006Yv-4q for sip-confirm+ok@megatron.ietf.org; Thu, 31 May 2007 05:19:54 -0400
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Htgow-0006WQ-IN for sip@ietf.org; Thu, 31 May 2007 05:19:50 -0400
Received: from mo-p00-ob.rzone.de ([81.169.146.160]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Htgov-00020O-2z for sip@ietf.org; Thu, 31 May 2007 05:19:50 -0400
Received: from [192.168.223.125] (cable-89-216-177-142.dynamic.sbb.co.yu [89.216.177.142]) by post.webmailer.de (fruni mo36) (RZmta 6.8) with ESMTP id F04bbcj4V9Cg36 for <sip@ietf.org>; Thu, 31 May 2007 11:19:46 +0200 (MEST)
Message-ID: <465E9331.8070909@zesium.com>
Date: Thu, 31 May 2007 11:19:45 +0200
From: Nina Garaca <nina.garaca@zesium.com>
User-Agent: Thunderbird 1.5.0.10 (X11/20070302)
MIME-Version: 1.0
To: sip@ietf.org
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
X-RZG-AUTH: jOJcr21HrPtUiRe9YmcRL+xtCcHiEk+2Cyz0y9h7zgP4m305c2pJpepT4Heis7LEQrg=
X-RZG-CLASS-ID: mo00
X-Spam-Score: 0.0 (/)
X-Scan-Signature: 39bd8f8cbb76cae18b7e23f7cf6b2b9f
Subject: [Sip] INFO message belongs only to INVITE dialog usage?
X-BeenThere: sip@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Session Initiation Protocol <sip.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:sip@ietf.org>
List-Help: <mailto:sip-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=subscribe>
Errors-To: sip-bounces@ietf.org

Hi all,

I have read rfc2976 - The SIP INFO Method, but I haven't really 
understood that INFO message belongs only to INVITE dialog usage, which 
however draft-ietf-sipping-dialogusage-04 claims in its part 5.3:


      5.3. Matching requests to usages



   For many mid-dialog requests, identifying the usage they belong to is
   obvious.  A dialog can have at most one invite usage, so any INVITE,
   UPDATE, PRACK, ACK, CANCEL, BYE, or INFO requests belong to it.

So my, question is:
    Can INFO message  belong to other usages, besides INVITE, such are  
SUBSCRIBE  or REFER?

Thanks in advance,
Nina.

-- 
Nina Garaca
Software Development & Testing

---

"ZESIUM mobile" d.o.o.
Valentina Vodnika 8/9
21000 Novi Sad
Serbia
Tel: +381 (0)21 472 15 48
Fax: +381 (0)21 472 15 49
Mob: +381 (0)63 16 15 891
E-mail: nina.garaca@zesium.com



_______________________________________________
Sip mailing list  https://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

v2.23.0 | Report a Bug | By Email