2. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP - Ready to Deploy Jim Nelson, Co-CEO

3. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S Industry Mandates A Robust Connection Management Platform Which Interoperates Scales Is extendable Enables applications

4. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP - ‘The Killer App’ Developed in mmusic Group in IETF Proposed standard - RFC2543 Protocol for Session Invitation and Connection Management Protocol Strengths Highly scalable Uses established Internet protocols Media and transport independent Enables applications Highly secure

5. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S Two Key Components - Agents User Agent Client - UAC Initiate SIP Requests User Agent Server - UAS Accepts or Rejects call Reside in Softswitches IP and soft phones Handheld and wireless devices DSL/Cable equipment PBX/UnPBX

6. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S Two Key Components - Servers Proxy Server Heart of SIP network which contains all service logic Redirect Server Returns routing information to the initiating endpoint Registration Registration enables subscriber mobility

7. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP Server Controls Service Logic Primary Place for SIP Services Controls all service logic Central point for location and billing services Internet Integration SIP integrates with web, email and chat applications Call Processing Language XML language for creating services and applications

8. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S Where Should SIP Servers Reside? Service Provider Networks ITSP’s Long distance carriers Cable MSO’s Firewalls Network address translations Network Access Points Cross network interoperability

9. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP Is Interoperable 2 Successful Bake-offs 15 companies Began with basic call set up (2 Vendors) Elevated testing to more advanced features such as; authenticated registrations, multi-hop proxy and media transport Communication Between Endpoints Two vendor demo - PingTel Moving Forward with Interop Testing Bake-off needs to focus on three-way testing between vendors to better model the needs of a commercial network

10. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP is Scalable SIP Scales to the Internet HTTP server comparison Documented SIP Performance Exists Ability to scale to 500,000 BHCA Moving Forward with Scalability Develop performance benchmark Continued SIP performance from multiple vendors to eliminate any speculation that SIP is ready for deployment NOW

11. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP is Extendable SIP-T - SIP for Telephony Interworking SIP for intra-softswitch communications Allows for the bridging of the PSTN and IP networks CPL - Call Processing Language Network edge service creation Allows for the Proxy Server to handle service requests DCS - Distributed Call State SIP for cable telephony Allows for service intelligence to be decentralized

12. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP Is Deployable Today!

13. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S All This Leads to Applications Follow-me Mobility Internet Call Waiting Unified Messaging Call Center Web/Email Integration

14. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP Momentum Softswitch to Softswitch Communication Using SIP-T Level (3) DCS - Cable Industry Support Distributed Call Signaling Using SIP Packet cable initiative Vendors and Service Providers are Now Choosing SIP Softswitches (MGC), gateways, endpoints, application servers SIP-based networks and services (MCI, Level(3), AT&T)

15. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S SIP In the Industry Consortium Support International Softswitch Consortium JAIN Pulver Test Network Packet Cable Recent Articles Future is SIP, Network Computing, September 20, 1999 http://www.networkcomputing.com:80/1019/1019colwillis.html SIP Gains Momentum, Telephony, August 23, 1999 http://www.internettelephony.com/archive/8.23.99/NOTW.htm#A10 Getting VoIP off the Ground, PC Week, August 2, 1999 http://www.zdnet.com/pcweek/stories/jumps/0,4270,410814,00.html

16. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S dynamicsoft SIP Products SIP User Agent To move the industry forward towards commercial deployment No-cost web download at www.dynamicsoft.com SIP Proxy Server Highly scalable Full RFC conformance CPL and SIP-T enabled Powering the VON pulver test network 216.66.26.102 SIP Location Server SIP CallAccounting Server

17. www.dynamicsoft.com Fall VON - September 28, 1999 C O N N E C T I N G T H E W O R L D W I T H A P P L I C A T I O N S dynamicsoft - Information Resource www.dynamicsoft.com No-cost User Agent download Booth #400/401