Subject: [siprec] Preliminary Minutes

From: "Rosen, Brian" <[email-masked]>
Date: Tue, 12 Nov 2013 19:28:24 +0000

Please send corrections

SIPREC IETF 88 minutes by Brian Rosen

Working Group Status
architecture draft almost done
Protocol WGLC completed, comments being resolved
Metatdata. Looking for implementation experience, NENA ICE8 happening this week

Protool  Charles Eckel
WGLC Complete, comments received from Paul, most dealt with on the list, in V11.
Mary: suggest early genart and security review
Charis: agree

Recording Preferences in SRC
The must was dropped when adding the ability to announce recording in current or subsequent offer/answer
Brian: did we drop MUST inadvertantly
Paul: don't recall exactly, but make sure we don't have to send announcement when we already have
Charles: will discuss on list
Paul: whenever you change state, you announce it

SRS procedures with SDP and metadata requests
Paul: don't expect SRS to send INVITES
Charles: if we only use UPDATE, it's simpler
Chairs: some clarification is needed, take to list

Next Steps, Conference Recording - Paul Kyzviat
Proposed to include document sharing
Brian: Whe you say doc share, we have no standards
Mary: yeah, that's a problem take it out of the 
Jonathan: it's video, marked as doc share
Dan: this shouldn't be the only way to record multimedia
Chairs: Suggest charter language
Mary: Too broad , MSRP may be too much
Brian: NENA needs MSRP
Keith: tell me exactly media you want to add in the charter
Jonathan: is BFCP in?
Paul: it's hard
Dan: doesn't say SIP or SIP based
Simon: agree with Dan
Hadrie: don't need this (media) sentence in the charter
Chairs: do we have consensus on getting rid of the list and add sip?
Mary: like the list, example, is BFCP in or out?
     Audio, video and MSRP is enough
Paul: really, this is just a metadata discussion
Keith: need the list to know when you are done
   If you don't say, then work isn't done until BFCP is done
Hadriel: what is needed, for example for MSRP?
Brian: metadata and how to record non RTP media
Paul: explicitly dnot want to include clue now
Mary: look at use cases first, then look at charter
Dan: yes
Keith: still need to know when we are done
    Need to add sip, define conferencing

Use Cases
Brian: need a way to record any new RTP media without a new version of metadata.
??? Lots of use cases with mixed sessions which we need to record
Brian: if they are separate apps, can't correlate them in one session
Hadriel: yeah, lots of different apps used here.  Yeah need a generic way to
record new media.  Maybe even generic TCP recording for MSRP
Mary: yeah or some proprietary stream, something generic is needed
Hadriel: if we limit to SIP based stuff! it's easier
Paul: as long as the SRC can reformat to something the SRS can handle, we can record it
Brian: if we had a generic RTP extension mechanism and a generic container mechanism for non
RTP streams, with ways of marking in metadata, that might work

<lots of back and forth on use cases>

Mary: are ADs aware?
Chairs: yes
Keith: and perhaps Dispatch chairs.  And don't forget file transfer is sometimes file transfer and sometimes a URI that leads to
the file
Mary: need use cases.  
Mary: re deliverables, are these new docs or bis docs?  Need to be very clear.

Chairs:  this to conclude in the next few weeks.  
Keith: need to decide if you are going specific or generic and reflect in the charter

chairs: use cases to the list in the next couple of weeks.  After that, we will decide if we need charter language.  If your use case is not contributed, it will not be considered in the milestones.