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Re: [siprec] Stephen Farrell's Discuss on draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)

Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 21 March 2016 15:32 UTC

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To: "Ram Mohan R (rmohanr)" <rmohanr@cisco.com>, "siprec@ietf.org" <siprec@ietf.org>
References: <20160302110853.23213.23639.idtracker@ietfa.amsl.com> <D2FD2694.5326B%rmohanr@cisco.com> <56D9989F.1010103@cs.tcd.ie> <D303791D.53A11%rmohanr@cisco.com> <D312E982.5567D%rmohanr@cisco.com> <56EEDFF2.4000604@alum.mit.edu> <D3160C24.5591E%rmohanr@cisco.com>
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Date: Mon, 21 Mar 2016 11:32:23 -0400
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Subject: Re: [siprec] Stephen Farrell's Discuss on draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)
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On 3/21/16 10:59 AM, Ram Mohan R (rmohanr) wrote:
> Paul,
>
> One comment please see inline
>
> -----Original Message-----
> From: siprec <siprec-bounces@ietf.org> on behalf of Paul Kyzivat
> <pkyzivat@alum.mit.edu>
> Date: Sunday, 20 March 2016 at 11:07 PM
> To: "siprec@ietf.org" <siprec@ietf.org>
> Subject: Re: [siprec] Stephen Farrell's Discuss on
> draft-ietf-siprec-metadata-20: (with DISCUSS and COMMENT)
>
>> Hi Ram,
>>
>> This looks good. I saw a couple of nits while reviewing the changes:
>>
>> * Section 6.1.2:
>>
>>     CSs and CS-Groups are optional to accommodate persistent recording,
>>     where there may sometimes be none.  ...
>>
>> That statement is correct WRT CS-Groups, but not CSs. CSs have much more
>> relevance, and aren't optional for recording. So I would simply omit
>> "CSs and " from the above.
>
> Above statement is for persistent recording case where the RS may be setup
> between SRC (say endpoint like voip phone) and SRS even before any CS is
> setup.
> Once CS is setup, the persistent RS dialog will be used to record the RS
> rather than setting up another RS. This statement is to indicate the same.

My point was that CSs are not optional in the same way that CSGs are.

They are optional in the sense that you can send a <recording> element 
that has none. But ultimately it is CSs that are the primary thing being 
recorded. And of course communication sessions can exist without recordings.

So maybe this just needs a few more words.

But this isn't a big deal. I won't be bothered if you leave it as-is.

	Thanks,
	Paul

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