SIPREC
Recording Metadata Model for SRS
(draft-ram-siprec-metadata-04)
IETF80 SIPREC MEETING
Parthasarathi R
On behalf of the team
Team: Paul Kyzivat, Ram Mohan R, R Parthasarathi
1
Agenda
• Changes in draft-ram-siprec-metadata from
the previous version
• Discuss Open items in Metadata Model
• Discuss closed items in Metadata Model
• Next Steps
Changes from Previous version
• Updated draft with the Metadata model-02
(which was presented in interim meeting after
IETF-79)
Metadata Model
Recording Session(RS)
1
1..*
0..*
Communication Session(CS) Group
1
1
1..*
0..*
Communication Session(CS)
Extension
Data
1
0.. *
2..*
Participant
1
0.. *
1.. *
receives
sends
0..*
0..*
1
Media Stream
4
Metadata Model: Recording Session
Open item:
 Optional Stop/Start time
attribute has to be
added?
Recording Session (RS)
•Recording Requestor ID
•Recording Type
(Selective/Persistent)
1
0..*
Extension
Data
1..*
0..*
Communication Session
Group (CS Group)
5
Metadata Model: Communication Session Group
Recording Session (RS)
Open Issue:
– Optional Start/stop time
attribute has to be added
1..*
0..*
Communication Session
Group (CS Group)
CS Group unique ID
1
0..*
Extension
Data
1
1..*
Communication Session
6
Metadata Model: Communication Session
Communication Session
Group (CS Group)
1
1..*
Communication Session
(CS)
-CS Unique ID
-Call terminate Reason
1
0..*
Extension
Data
Open Items:
 Optional Stop/Start time
attribute has to be
added?
 Whether Session state
attribute has to be
included to indicate:
trying, proceed, early,
confirmed, terminated
0..*
2..*
Participant
7
Metadata Model: Participant
Communication Session
Open Items:
 Optional Stop/Start time
attribute has to be
added?
0..*
2..*
Participant
•AoR
•Name
0.. *
1
0..*
Extension
Data
1.. *
receives
sends
0..*
0..*
Media Stream
8
Metadata Model: Media Stream
Participant
0.. *
Open item:
• Change 4.5.1 3rd bullet as
“"Codec params represents codec
1.. *
receives
sends
0..*
0..*
Media Stream
•Start Time
•End Time
•Codec
(& codec params)
•Media Stream
Reference
description of RS SDP"
1
0..*
Extension
Data
Closed item:
• In case Media is
“inactive” from the
beginning of the session,
start-time is not required
to be passed across. The
text will be added to
clarify
9
Metadata Model: Media Stream
Open items:
– Is it required to model media streams that are not recorded[ e.g SRC offered
certain media types but SRS choose to accept only subset of them]
Next steps
• Request for review of draft-ietf-siprecmetadata-00 in the mailer
• WGLC of metadata model draft?
• Align metadata format draft with metadata
model draft