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NGN interoperability

NGN interoperability. 21st CJK UNIOT -WG 20 11 .7 .11-13 TTC Hideo HIMENO (h-himeno@bc.jp.nec.com) Kaoru KENYOSHI (kaoru.kenyoshi@emea.nec.com). Outline. Introduction Discussion VoIP service testing for NGN UNI Multimedia service testing for NGN UNI

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NGN interoperability

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  1. NGN interoperability 21st CJK UNIOT-WG 2011.7.11-13 TTC Hideo HIMENO (h-himeno@bc.jp.nec.com) Kaoru KENYOSHI (kaoru.kenyoshi@emea.nec.com)

  2. Outline • Introduction • Discussion • VoIP service testing for NGN UNI • Multimedia service testing for NGN UNI • PSTN/ISDN simulation service protocol • Conclusion

  3. Highlight of Current Activities • SG11 creates NGN Interoperability documents map to show the relationship of testing specifications. • Draft Rec.Q.3948 “VoIP service testing framework for NGN UNI” was completed at last meeting. • The new work programme “Multimedia service testing framework for NGN UNI” was launched. • The new work programme “PSTN/ISDN simulation service protocol” was started. • Emerging next issue from SG11 that M2M interoperability, Cloud Computing interoperability and new technology testing.

  4. NGN testing specifications document map Handbook of testing Draft Q.3909 NGN interoperability Conformance testing Interoperabilitytesting Q.3900 Q.3901 Q.3906 Draft Q.3948 Service testing framework for VoIP at NGN UNI Q.3903

  5. Introduction • Discussion • VoIP service testing at NGN UNI • Multimedia service testing for NGN UNI • PSTN/ISDN simulation service protocol • Conclusion

  6. Draft Q.3948 Service testing framework for VoIP at NGN UNI • TTC developed Technical Reports to specify the detailed protocol specifications at NGN UNI and NNI for interoperability between Japanese operators. • TTC developed TTC standards JT-Q3401 and JT-Q3402 which consist of the translation part of ITU-T Recommendations and TTC original specifications as Annex and Appendix. ITU-T Q.3948 Service testing framework for VoIP at NGN UNI ITU-T Q.3402 ITU-T Service specifications for VoIP TTC JT-Q3402 Down stream Main text TTC TR-9024 Up stream Annex Annex Appendix Main text TTC additional spec. Technical information Annex Appendix

  7. VoIP testing terminal model in draft Q.3948 • Draft Q.3948 defines the “VoIP test object” which is described as the block diagram of SIP multimedia communication terminal and blue coloured parts are the “VoIP test object”. • The profiles on VoIP test object is described in this draft document. Video I/O element Video codec (MPEG4, H.264) Local Area Network Interface RTP / RTCP (RFC3550) Audio I/O element Audio codec (G.711) System control SIP (RFC 3261) System control User Interface SDP (RFC 4566)

  8. VoIP testing sequence in draft Q.3948 • Draft Q.3948 defines the “Basic Call service sequence”

  9. Call origination to disconnectionin draft Q.3948 ～ ～ ～ ～ ～ ～ ～ ～ SIP domain: example1.ne.jp TEL: 03-1111-1111, 03-1111-1112 IP (SIP/RTP): 192.0.1.1 F1: INVITE IP (SIP): 192.0.1.10 IP (RTP): 192.0.1.11 Terminal Network INVITE tel:0322222222;phone-context=example1.ne.jp SIP/2.0 Via: SIP/2.0/UDP 192.0.1.1:5060;branch=z9hG4bK12345678-11111121 Route: <sip:192.0.1.10;lr>,<sip:s-cscf.example1.ne.jp;lr> Max-Forwards: 70 To: <tel:0322222222;phone-context=example1.ne.jp> From: <sip:0311111112@example1.ne.jp>;tag=1234abcd-11111121 Call-ID: qwertyuiop111112@192.0.1.1 CSeq: 1 INVITE Contact: <sip:zxcvbnm@192.0.1.1> P-Preferred-Identity: <sip:0311111112@example1.ne.jp> Privacy: none Allow: INVITE,ACK,BYE,CANCEL,PRACK,UPDATE Supported: 100rel,timer Session-Expires: 300 Content-Type: application/sdp Content-Length: 195 v=0 o=- 82664419472 82664419472 IN IP4 192.0.1.1 s=- c=IN IP4 192.0.1.1 t=0 0 m=audio 10000 RTP/AVP 0 96 a=rtpmap:0 PCMU/8000 a=rtpmap:96 telephone-event/8000 a=fmtp:96 0-15 a=ptime:20 F1: INVITE F2: 100 Trying (INVITE) F3: 180 Ringing (INVITE) F4: PRACK F5: 200 OK (PRACK) F6: 200 OK (INVITE) F7: ACK Communication F8: UPDATE F9: 200 OK (UPDATE) F10: BYE F11: 200 OK (BYE) Figure 7 Call origination to disconnection (IPv4, Use of timer and 100rel, G.711 m-law) (access-line based authentication)

  10. Introduction • Discussion • VoIP service testing for NGN UNI • Multimedia service testing for NGN UNI • PSTN/ISDN simulation service protocol • Conclusion

  11. How to develop NGN Multimedia service testing specification • Fundamental Structure of MM service testing spec. is based on Q.3948 “VoIP service testingat NGN UNI” • MM service contains many sub-service • Video Phone • Video Conference • Data Conference • 2 part 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)

  12. Interoperability Test for“Multimedia Service Testing” • Profile sample of MPEG-4

  13. Introduction • Discussion • VoIP service testing for NGN UNI • Multimedia service testing for NGN UNI • PSTN/ISDN simulation service protocol • Conclusion

  14. 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 • Process to develop protocol specifications • Step 1: Define the target of PSTN/ISDN simulation services to develop service protocol specifications • Step 2: Define the reference base specification of other SDOs (ex. TISPAN, 3GPP) • Step 3: Modify base reference specifications and adjust them to ITU-T requirements and architectures, etc • Detailed protocol specifications of global standard are needed to achieve interoperability

  15. Next SG11’s meeting plan for “PSTN/ISDN simulation service”

  16. Introduction • Discussion • VoIP service testing for NGN UNI • Multimedia service testing for NGN UNI • PSTN/ISDN simulation service protocol • Conclusion

  17. Conclusion and Challenge • VoIP service testing at NGN UNI • Draft Q.3948 (May 2011 resent approved) • Multimedia service testing at NGN UNI (Real-time multimedia service) • Draft Q.MultimediaTEST (new item) • Creating PSTN/ISDN simulation service protocol (TIP/TIR, OIP/OIR, HOLD etc) • Recent launched • Planning New Interoperability testing CJK should promote the study of NGN interoperability as the leader countries of ITU-T

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