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SIP: Enabling Scalable Communications Solutions

Learn about SIP (Session Initiation Protocol), its components, benefits, and relevance in the world of communications technology. Explore its interoperability, extensibility, and role in enhancing services. Stay updated on SIP events, technologies, and implementations driving innovation. Visit dynamicsoft's booth for more information.

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SIP: Enabling Scalable Communications Solutions

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  1. VON Europe 1999 SIP Update Jim Nelson - Founder, co-CEO

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

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

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

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

  6. SIP Is Scalable • Minimal Resource Requirements • Stateless servers • Minimal Bandwidth Overhead • Well suited for endpoint devices • Low Call Setup Times • Text-based Encoding • Designed for IP Networks

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

  8. SIP Interoperability Update • SIP Bake-Off Event • April, 1999 - 15 Companies Test Interoperability on 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

  9. SIP and MEGACO - Why Both ? • Complimentary Technologies • MEGACO • IETF draft • Common media control interface • SIP • Call Services • Support the Delineation of Control from Media

  10. SIP in a VOIP Network 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

  11. SIP: Current Events • Call Processing Language - CPL • Language that Works with SIP to Create Enhanced Services • XML-based • IETF Sponsored • Multi-part body • Support for MIME types • SIP used to carry ISUP between MGC’s

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

  13. jSIPTMImplementation • Rich API Set for Flexibility • Java and C/C++ • Features • Highly Scalable • Platform independent • Clients and servers • Version 2.1 Shipping Today • Designed to deploy SIP rapidly

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

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