Subject: RE: [Megaco] profile (name and version) in reply from the MGC thatwasprovided in service change request

From: "Shashank Taneja" <[email-masked]>
Date: Tue, 24 Jul 2007 17:59:58 +0530

Hi Albrecht,

The confusion whether MGC can send back the same profile in SVC response still persists. As per the proposed text of 7.2.8.1.11 in IG:

If the MGC returned a profile in the reply other than the one that was provided in the request the MG shall: a)... c)

The highlighted text is indicating the possibility of same profile being returned in SVC reply from MGC, is that the intent? Also its not clear what should be MG behaviour when this happens, as a) and c) are valid only if a new profile is received.

Kindly clarify.

Thanks

Shashank

________________________________

From: Schwarz Albrecht [mailto:[email-masked]] 
Sent: Monday, July 23, 2007 4:34 PM
To: Pankaj Kumar; [email-masked]
Subject: RE: [Megaco] profile (name and version) in reply from the MGC thatwasprovided in service change request

Hi Pankaj,

§ 7.2.8.1.11 was updated, see IG or new H.248.1 Amendment 1:

ITU-T Rec. H.248.1 Amendment 1 "Gateway Control Protocol: Version 3" (New)

http://www.itu.int/md/T05-SG16-070626-TD-PLEN-0394/en

We got at least one discussion on this clause due to

AVD-2919 <http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/AVD-2919.zip>  Implementers' Guides for H.248.1 - Profile Negotiation Procedures

http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0608_Ott/AVD-2919.zip

Do you see still items for clarification?

-Albrecht

________________________________

	From: Pankaj Kumar [mailto:[email-masked]] 
	Sent: Montag, 23. Juli 2007 12:46
	To: [email-masked]
	Subject: [Megaco] profile (name and version) in reply from the MGC that wasprovided in service change request

	Hi All

	I have query about profile (name and version) returned in the reply of service change message from the MGC.  The Section 7.2.8.1.11 of H.248 version 3 says that "The profile (name and version) is only returned in the reply in the case that the MGC cannot support the specified profiles in the ServiceChangeRequest", whereas in the same place it says "If the MGC returned a profile in the reply other than the one that was provided in the request the MG shall: a) continue the control association by issuing a new ServiceChange Command with an agreed profile to confirm to the MGC that the MG has agreed with the profile; or b) keep the control association active, so that the MGC will use the profile that it sent in the ServiceChange Reply; or c) initiate a control association with a different MGC using its original profile.". 

	It is not calrified from the spec that what will be the MG behavior on receiving same profile (name and version) in reply from the MGC that was provided in service change request. Whether in this case as per condition "The profile (name and version) is only returned in the reply in the case that the MGC cannot support the specified profiles in the ServiceChangeRequest" the MG will send another service change with same profile or mark control association as active. 

	Thanks & Regards

	Pankaj Kumar

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