1. Presents Fall Forum 2002

2. The H.323 Revolution Presented by Eli Orr EliOrr@radvision.com October 2002

3. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Agenda H.323 Milestones H.323 Architectures How H.323 Address Requirements Conclusion

4. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Milestones of H.323

5. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA  Version 1, May 1996  Focus on LAN and Switch Circuit Network (PSTN) concepts  Version 2, January 1998  Fast Connection, Security, QSIG based Supplementary Services,..  Version 3, September 1999  Any New Codecs enabled, Call ID Improve, MIB defined  Version 4, November 2000  Advanced Scalability, HTTP control, advanced usage information, bandwidth management, Enable Tunneling of PSTN Signaling, Call Credit Capabilities.  Today: Towards Version 5 SCTP, Enhanced Security, Mobility, IPSec, IPv6, Presence,.. H.323 Maturity Phases

6. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Terminals –VC Systems –Desktop Endpoints –IP Phones (Hardware) –Soft phones –Hand Held Devices / PDAs Management – VoIP OAM&P systems DSP Solutions –IP Phone –Residential Gateway Networking Equipment –Gateways –IP-PBXs –Softswitches –Gatekeepers –MCUs –Application Servers –Call Center Systems –eCommerce (VXML) –Carrier Class VoIP servers –Well managed OSS/BSS Solution (OSP) www.h323forum.org www.h323forum.org For more: www.h323forum.org “products and services”www.h323forum.org H.323 Today Most Matured VoIP Products Suite

7. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA H.323 Architectures

8. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA H.320 mode External Customers, Vendors, Remote Offices H.320 MCU Voice only (analog) Switched Circuit Network PSTN/H.320 Gateway MCU Corp Headquarters LAN MCU H.323 Standalone Endpoint Gatekeeper H.323 Desktop Endpoint Wide Area Network H.323 Standalone Endpoint H.323 Desktop Endpoint H.323 Standalone Endpoint H.323 Standalone Endpoint Gatekeeper Remote Site MCU H.323 is Successfully deployed in and between Enterprises

9. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA MCU H.323 in Service Providers Backbones PSTN GK Carrier-A Infrastructure Zone PSTN Carrier-A PSTN Carrier-B Carrier / ASP IP-PBX Carrier / ASP SIP Network MGCP Network H323 / OSP

10. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA How H.323 address Requirements ?

11. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Rich Media Communication Requirements Rich Media Communication Requirements Interoperability – All version all types shall operate together! Rich Conferencing Services On-line Participants change Flexible in Multimedia Qualities Applications data sharing Common Qualities detection Advanced conference control Friendly addressing Enabled Privacy Media mixing Add on Services Flexible for Service Creation Best PSTN like services DTMF in band/out-band PSTN Harmonization Solutions for Hybrid networks Add-on services defined mapping Service Management Centralized/Decentralized Endpoints Authentication Resources usage control Scalable Redundancy/Recovery Accounting Call Credit Efficient Networking Usage Scalable Advanced address resolution DNS/LDAP integration Reliable signaling Efficiency Optimized network usage QoS exchange

12. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA PSTN Harmonization H.323 Solutions

13. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA PSTN Harmonization H.450 Supplementary Services Based on PSTN QSIG logical Layer ECMA defined formal interwoking solutions H.450 Rich Suite of Services Call Transfer (H.450.2) Call Diversion/Forwarding (H.450.3) Call Hold (H.450.4) Call Park and Pick-Up (H.450.5) Call Waiting (H.450.6) Message Waiting (H.450.7) Name Identification (H.450.8) Call Completion on Busy (H.450.9) Call Offer (H.450.10 uses H.450.6) Call Intrusion (H.450.11) H.450 Capabilities and Policies (H.450.12) A B C

14. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA PSTN Harmonization Tunneling PSTN Signals SCN (Switched Circuit Network) will exist for many years- SS7 signaling transport over IP will be very useful for coexistence Enables H.323 as a “transport layer” between telephony domains Enables signaling between SCN networks over H.323 –QSIG – Annex M.1 –ISUP – Annex M.2 –DSS1 – Annex M.3 SCN - 2 (Switched Circuit Network) H.323 over IP network SCN - 1 (Switched Circuit Network)

15. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA PSTN Harmonization Well Known Tones and Announcements Gatekeeper can signal a Gateway to play tones and announcements The users on both sides can get the known PSTN status sounds H.323 network PSTN network Desktop PSTN Phone

16. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Rich Media Conferencing H.323 Solutions

17. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Rich Multimedia Conferencing Flexible and Mature Solution Enable adding and terminating participants on-line Media and other capabilities exchange well defined No limit for media qualities and Codecs to use Real-time application data sharing (T.120) Media mixing to see and hear several participants(MCU) Conference chair control Control resources – camera control (Annex Q) Can operate with media encryption (H.235 v2)

18. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Can operate with Web based applications H.323 Annex K Gatekeeper H323/450 Protocol Call Management Web Server Applications WEB Call Center (CTR) IP HTTP H.323 Interactive Web Voice Response (IWR/IVR) Follow me services Web multimedia instant messaging Presence services enabled!

19. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Service Management H.323 Solutions

20. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Well Managed Services With a Gatekeeper MCU Management Configuration Service Creation (Annex K) HTTP Server LDAP Server Authentication Address Resolution Billing Usage report Billing Server Registrations Usage Data of Personal Customization Database DNS Address resolution Gatekeeper (Softswitch Call Agent) OSP (*) Inter-SP Dynamic Settlements

21. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Enhanced Service Availability Active Gatekeeper Backup Gatekeeper H.323 using SCTP Enable Gatekeepers farm as one gatekeeper for end point Redundancy Alternate Gatekeeper Warm registration backup Switches to another gatekeeper upon failure Routing Redundancy Supports multiple optional routes

22. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Security H.323 Solutions

23. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Security Services H.235 Suite User and Terminal authentication & Authorization Who is using the service? What services shall be provisioned? Secured Signaling Protection of signaling protocols against manipulation, misuse, DoS, confidentiality & privacy Conversational Multimedia confidentiality Encryption of the RTP streams to prevent eavesdropping Key Management Secure key distribution and key management among the parties (e.g. Using LDAP) Support Various Operational Scenarios Point-2-point, multipoint, small scale and very large scale

24. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Advanced Networking H.323 Solutions

25. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Enhanced Networking Solutions Most Efficient Call Setup – FastStart and its enhancements Reliable Signaling – TCP Based since day one Q.931 Multiplexing – Performance boost for high capacities QoS – Can request QoS from network (RSVP) Media Streaming – Over UDP / ATM Service Availability – Desired Protocols requests Real-Time Fax - On-line switching to Fax transmissions

26. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Rich Media Conferencing H.323 The Enabler

27. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Requirements Addressing Very Rich Conferencing Services Advanced PSTN Harmonization Add-on Services suite and Service Creation Enabled Advanced Service Management Efficient Networking Resources Usage Operates today on many environments and chipsets…

28. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA H.323 on Various OS environments MS Windows Windows XP Windows 2000 Windows NT 4.0 Windows 95/98 Unix OSs Solaris Sparc Solaris PC TRUE64 Linux RedHat HP-UX … RTOS Windows CE VxWorks Nucleus PSOS OSE Embedded Linux …

29. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USA Applications Powered H.323 Application code Platform 3 rd Party TCP/UDP/IP, OSs Application (Features, services, UI …) Conference Manager Q.931 Call Signaling RAS Registration Admission Status RTP/RTCP Real-Time Protocol H.245 Call Control H.225 High Level API Porting Layer H.450 H.235 Add Ons Enabling Rich Media Conferencing H.323 Version 4 H.323 Version 4 H.225 Version 4 H.225 Version 4 H.245 Version 7 H.245 Version 7 H.450.1-12 H.450.1-12 H.235 Version 2 H.235 Version 2 Annexes (HTTP control, SCN,...) Annexes (HTTP control, SCN,...)

30. Sponsored in part by: IMTC Fall Forum – November 2002 – New York, NY, USAConclusion There is a Powerful and Mature Rich Media Communication Protocol to Build New Great Products ITU-T H.323 Version 4