NGN interoperability - TTC activities in ITU-T -

1. NGN interoperability- TTC activities in ITU-T - Kaoru Kenyoshi TTC as the PPSO of interoperability

2. Highlight of Current Activities • TTC is continuously contributing to ITU-T SG11 to improve NGN interoperability since Res.76 was adopted in WTSA08. • TTC proposed new draft Recommendations Q.3903 “NGN interoperability” and Q.3948 “Service testing framework for VoIP at NGN UNI”. These Recommendations were approved in ITU-T SG11 meeting in May and October 2011 respectively. • TTC proposes the detailed signalling specifications and test specifications based on the TTC and HATS activities on NGN interoperability. • TTC members have been actively participating in IPTV Interop Events conducted by ITU-T SG16 and contributing to JCA-CIT meeting. Note[1]: http://www.ciaj.or.jp/hats/e/what/about.html

3. Highlight of Current Activities Work plan of up-streaming to ITU-T SG11 ● Initial draft ▲Approved (10/21) ▲ Approved (5/27) ★Proposal (7/4) ▲Approval (2/6) ●CJK ● Initial draft ●CJK Approval in June ★Proposal (7/4) ●CJK ●Initial draft ●CJK ●Finalize Approval in June ★Proposal(7/4) ●CJK ●Initial draft ●CJK ●Finalize Note[1]: http://www.ciaj.or.jp/hats/e/what/about.html

4. Strategic Direction • TTC developed TTC standards JT-Q3401 and JT-Q3402 to specify the detailed protocol specifications at NGN UNI and NNI for interoperability between Japanese operators. • TTC proposes our experiences to ITU-T SG11 and invites contributions from various SDOs based on this and develop the global standards. ITU-T Q.3402 ITU-T Service specifications for VoIP TTC JT-Q3402 ITU-T Rec. Q.3948 VoIP conformance Testing at NGN UNI Down stream Main text TTC TR-9024 Up stream Annex Annex Appendix Main text TTC additional spec. Technical information Annex Appendix SDOa SDOb SDOc

5. Challenges How to develop NGN Multimedia service testing specification • Fundamental Structure of Multi-media service testing specifications is based on Q.3948 “VoIP service testingat NGN UNI” • MM service contains many sub-service • Video Phone • Video Conference • Data Conference • 2 parts structures of MM service testing • MM service framework testing • Profiles • Testing preparation • Sub-service testing (ex. Video Phone service) • Test procedure • Test cording Q.3909 Q.NGN interoprability VoIP service testing at NGN UNI MM service testing framework Q.3948 • Profiles • Preparation Video Phone service testing PSTN/ISDN simulation service testing Video Conference service testing Data Conference • Procedure • Cording Annex SD(MPEG) SD(H263) HD(H264)

6. Next Steps / Actions Launching New Work Programme “PSTN/ISDN simulation service” • ITU-T Rec. Q.2211 defines • OIP, OIR, TIP, TIR, MCID, ACR, CDIV, HOLD, CB, CCBS, CW, MWI, CONF, AOC, ECT, RC, UPT, CRBT, CRT • Develop protocol specifications to global deployment • Step 1: Define the target services of PSTN/ISDN simulation services to develop service protocol specifications • Step 2: Define the reference base specification of SDOs (ex. TTC, ETSI, 3GPP) • Step 3: Modify/re-define/endorse base reference specifications and adjust them to ITU-T requirements and architectures, etc.

7. Next Steps / Actions • Support developing countries • Many efforts on interoperability have been done and are on-going in various SDOs such as developing protocol specifications, test specifications and examination of interop events. But there are still interoperability problems in the developing countries. SDOs have to support the deployment and build up the human capabilities in the developing countries. • Key roll of ITU-T • ITU-T should take the lead coordinating role in the harmonization of various standards based on the concept of consistent end-to-end interoperability. • Vigorous protocols are developed in the vigorous SDO. ITU-T should study the practical solution and promote the deployment of interoperable and affordable NGN equipment. TTC proposes to reaffirm the HIS interoperability.