1. IMTC SIP Interconnect and SuperOp
Charles Eckel
IMTC SIP Parity AG Chair, MEF LSO Hackathon

2. MEF Q4 - Applications Committee
What is the IMTC?
International Multimedia Telecommunications Consortium
Mission:
Promote and facilitate the development and use of interoperable, real-time, multimedia telecommunications products and services based on open international standards.
MEF Q4 - Applications Committee

3. MEF Q4 - Applications Committee
Problem Statement
Standards interpreted differently
Solutions are competitive
Interoperability is hard
MEF Q4 - Applications Committee

4. SIP Interconnect AG - Charter
Forum for IMTC member companies to cooperate and pool resources on issues and extensions to SIP based enterprise communication applications
Best practices documents as shared foundation to interoperate
Identify and tackle challenges and opportunities with interoperability, operation, and integration of SIP based applications with emerging communication and networking technologies
MEF Q4 - Applications Committee

5. SIP Interconnect AG – What We Do
Organize interoperability test events
Done in cooperation and coordination with WebRTC, MANE, SSV, and UC SDN activity groups and with SIPit
Provide forum for members to agree on SIP profile for communication applications
Particularly for interconnecting with other application and network technologies (e.g. WebRTC, SDN, IPv6)
Educate members on recent developments in SIP standards and market evolution
MEF Q4 - Applications Committee

6. Best Practice Documents
SIP Video Profile
Add video (H.264) to SIP based audio telephony
Role Based Video
Add content sharing to SIP based video conferencing
SIP Security
Enable adoption of secure signaling (TLS) and media (SRTP)
MEF Q4 - Applications Committee

7. MEF Q4 - Applications Committee
SIP Video Profile
Asymmetric negotiation
Bandwidth, Video Coding Complexity
Bandwidth Indications - Session level vs. media level
RTP/AVPF profile – SDP offer/answer negotiation
Flow control - SDP vs. RTCP feedback (TMMBR)
Intra frame request - SIP INFO vs. RTCP feedback (PLI/FIR)
H.264 – Recommended set of parameters
MEF Q4 - Applications Committee

8. MEF Q4 - Applications Committee
Recent Developments
SIP Video Profile
IMTC1015 – Published (obsoletes IMTC1013)
Improves interworking with IMS/3GPP
Addresses interworking issue with RTCP feedback parameters
Test Cases
Added to address issue with “m-stream” vs. “mstrm”
IETF draft
Negotiating SRTP and RTCP Feedback using the RTP/AVP Profile, draft-ietf-mmusic-opportunistic-negotiation
MEF Q4 - Applications Committee

9. Role Based Video Streams
Video - “main” vs. “presentation”
RFC 4796 “content” attribute
Mapping:
“slides” for H.239 “presentation”
“alt” for H.239 “live”
“main” for the main video stream
BFCP (Binary Floor Control Protocol)
UDP instead of TCP for transport
MEF Q4 - Applications Committee

10. Recent Developments IETF BFCPBIS Working Group (Charter)
Role Based Video Streams
IETF BFCPBIS Working Group (Charter)
draft-ietf-bfcpbis-rfc4582bis in RFC editor’s queue
draft-ietf-bfcpbis-rfc4583bis in working group last call
IMTC best practice to be updated per new RFCs
IMTC Last Call
Publish as IMTC10xx
MEF Q4 - Applications Committee

11. MEF Q4 - Applications Committee
SIP Security Profile
MEF Q4 - Applications Committee

12. MEF Q4 - Applications Committee
Recent Developments
SIP Security Profile
IETF draft
An Opportunistic Approach for Secure Real-time Transport Protocol (OSRTP), draft-ietf-sipbrandy-osrtp
IMTC best practice to be updated per new RFC
IMTC Last Call
Publish as IMTC10xx
MEF Q4 - Applications Committee

13. MEF Q4 - Applications Committee
SuperOp!
Annual event focused on interoperability
Developers, testers, architects test interworking of bleeding edge and production products and solutions
MEF Q4 - Applications Committee

14. MEF Q4 - Applications Committee
SuperOp! 2018
Host as part of MEF Q2 Meeting?
Combine with Euro18 LSO Hackathon?
MEF LSO Hackathons encourage software developers and network experts to collaborate and develop utilities, ideas, sample code and solutions that show practical implementations of MEF- defined services and LSO APIs
MEF Q4 - Applications Committee

15. Questions?
Thank you!