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Progress Report: Navigating the Crossroads to Interoperability

This report discusses the critical importance of interoperability in the deployment of network equipment and the challenges involved. It explores the role of SIP and MEGACO protocols in achieving interoperability and highlights the progress made in SIP interoperability testing. The report also introduces dynamicsoft's SIP effort and their jSIPTM implementation.

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Progress Report: Navigating the Crossroads to Interoperability

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  1. VON Europe 1999 SIP Progress Report Navigating the Crossroads to Interoperability Jim Nelson - Founder, co-CEO

  2. Why Is Interoperability Critical ? • Interoperability Allows Service Providers • To freely choose what equipment components are best for their network deployment • Interoperability Allows Equipment Manufacturers • To provide differentiated solutions to end customers

  3. Specific Interoperability Challenges • Between Multiple Equipment Vendors • In today’s environment, carriers will deploy equipment from multiple vendors • Between Different Networks • Need bridge between different carrier networks

  4. Technical Challenges • Media Gateway Controller (MGC) to Media Gateway (MG) • MGC to MGC • MG to MG

  5. What is SIP ? • Session Initiation Protocol (SIP) • IETF Proposed Standard (RFC 2543) • Generic Call Services Protocol • Similar to HTTP

  6. SIP’s Role in Interoperability SIP Proxy sigtran Media Gateway Controller MGC sigtran SIP Signaling Gateway SG to SS7 to SS7 Megaco IP Network Megaco RTP MG Media Gateway to PSTN to PSTN SIP Client

  7. SIP Components • User Agents • Clients to initiate calls and servers to accept or reject calls • Servers • Proxy • Redirect • Registration

  8. SIP Is A Platform • Defined Building Blocks Enable Rapid Innovation • Extensibility Mechanisms • Security • Media and Transport Independent

  9. Value of SIP • Interoperability • User agents for intra-MGC communications • Servers that span carrier networks • Designed for IP Networks • Platform for Enhanced Services • Scalable

  10. SIP Is Scalable • Minimal Resource Requirements • Stateless servers • Minimal bandwidth overhead • Well suited for endpoint devices • Low Call Setup Times • Text-based Encoding

  11. SIP Enables Applications • Billing • Directory Services • Internet Call Waiting • Collaboration • eCommerce • Click-N-Call

  12. SIP Interoperability Update • SIP Bake-Off Events • April 1999 - 15 Companies test interoperability between their equipment • dynamicsoft, Nortel, Ericsson, 3 Com, HP, Ellemtel, Dialogic, BT, PingTel, Alcatel, Columbia University, MCI, Cisco, Lucent Technologies, MediaTrix • Call setup interoperability demonstrated in 2 day event • Next Bake-off planned for August in New York, USA

  13. What Is MEGACO ? • Media Gateway Controller Protocol • MGCP, MDCP, H.gcp • Common Media Control Interface • Moving Forward As The Recognized Standard • Version 02 Expected This Week

  14. MEGACO Interoperability Drive Standards from the MGC to the MG Vendor A MGC Vendor A MG Vendor B MG Vendor C MG

  15. Interoperability Next Steps • More Interoperability Events • More Equipment Manufacturers and Service Providers Actively Testing Interoperability • Active Participation by Leading Standards Bodies and Consortiums

  16. dynamicsoft’s SIP Effort • Drive Standards • Drive Increased Scalability and Interoperability • Deliver Enabling Technologies to Build Applications

  17. jSIPTMImplementation • Rich API Set for Flexibility • Java and C/C++ • Internet Approach • Platform independent • Clients and servers • Security and firewall friendly • Version 2.1 Shipping Today • Designed to deploy SIP rapidly

  18. Information Resource www.dynamicsoft.com Booth #26 • jnelson@dynamicsoft.com • p: +1 732.741.7244

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