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Advancing H.323 Standards for Interoperability in Conferencing Technologies

The CoIP Activity Group, led by Greg Meyer of Intel Corporation, is dedicated to accelerating the adoption of H.323 standards-based compatible products. Our mission focuses on detecting and correcting H.323 defects, clarifying ambiguities, and facilitating interoperability testing through various scenarios. We aim to bring together implementers to ensure robust compatibility in conferencing technologies, driving forward collaboration and innovation among stakeholders. Upcoming engineering events include cooperative testing in Portland and at ETSI, fostering advancements in interoperability.

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Advancing H.323 Standards for Interoperability in Conferencing Technologies

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  1. Conferencing over IPActivity Group Update “What is now proved was once only imagined.” -William Blake Greg Meyer - Intel Corporation, IAL (greg.w.meyer@intel.com) CoIP Activity Group Chair

  2. H.323 Implementers Our Mission:get the most H.323 standards-based, COMPATIBLE products, fielded as SOON as possible.

  3. Specific Tasks • Standards Related • Detect and correct H.323 defects • Clarify/Standardize H.323 ambiguities • Provide input to ITU-T Implementers’ Guide • Provide arena for interoperability/compatibility • Testing scenarios / typical configurations • Specific interactions, not implementations • Cross pollination of implementation issues

  4. ISDN POTS Switched Circuit Network Internet BRI H.323 Universe H.323 MCU Router/GK H.323 endpt. w/MC H.323 Endpoint Router H.323 Endpoint H.324 Endpoint H.323 Endpoint H.323 Endpoint H.320 Endpoint Gateway H.323 Endpoint Speech-Only (telephones) H.320 Group System H.323 Gatekeeper H.323 Endpoint Firewall & H.3223 proxy Speech-Only (telephones) Gateway

  5. Interop Events • Three IMTC CoIP/ETSI TIPHON events this year plus SuperOp!99 • iNOW! AG participating at same test events

  6. What’s being tested • Richer Gatekeeper functionality • Inter-zone (LRQ) calls • Beginning Inter-domain (Annex G) calls • Multipoint • ‘Real world’ Gateway/Gatekeeper interactions • FastStart, Supplementary Services, Security • TIPHON & iNOW! phone-phone & PC-phone scenarios

  7. Example Scenario

  8. How We’re Testing • Ad-Hoc/Debug Testing • PDU-level testing • High-level scenarios • Scored Testing • High-level scenarios • Short time intervals • No debugging • Scored (new scoring system) to measure combined results • Rules of Engagement vital to cooperation & success

  9. An Ad-Hoc Example H.323 Endpoints IP Network IP GK GK Inter-Zone H.323 Endpoint MCU IP MCU IP H.321 Endpoint ATM Gateway

  10. The Changing Environment • Large room (5500 ft2) • 100 engineers • 90 test stations • LAN: Hubs, Routers, Switches • ISDN BRI & PRI • POTS analog

  11. ETSI TIPHON • Cooperative arrangements are successful! • TIPHON and CoIP work & direction are complementary • Two events hosted at ETSI facility, France

  12. Next Steps • Engineering Interoperability Events • CoIP/iNOW!/TIPHON event in Portland, November 29 - December 5 • CoIP/iNOW!/TIPHON event at ETSI, February 21 - 25 • Begin Virtual Interoperability Events • ETSI TIPHON to host infrastructure • First event this week, Nov 10th

  13. Next Steps (cont.) • Continue Alliance Development • TIA TR-41.3.4 • Form & Support Special Interest Groups (SIGs) • e.g. QOS • Others (your input here…) • Focus on amending the current, base test plans

  14. Where to get more... • Email reflector (majordomo@imtc.org) • “subscribe h323implementors (email address)” • Post to “h323implementors@imtc.org” • FTP sites for documents: • ftp.imtc-files.org/imtc-site/CoIP-AG • standard.pictel.com/avc-site • ftp.intel.com/pub/H.323/ • Contact greg.w.meyer@intel.com

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