1. Session Initiation Protocol (SIP) Panel Larry Amiot (Northwestern University), Chair Ben Teitelbaum (Internet2) Todd Needham (Microsoft) Orit Levin (Radvision)

2. How Do We Communicate? Telephone (home, work, & cell phone) Email Text messaging Data sharing (PowerPoint, applications, white board, desktop, etc.) Interactive Audio/video Real-time/on demand one-way Audio/video File transfer Ink- tablet PC

3. Questions? …but how do we know where to find the person we want to communicate with...and given the availability of my resources, which of the persons devices do I want to communicate with..and what is the address of that device..and how does the person control his active/inactive devices..and how do we authenticate people..and how do we bridge this between organizations

4. Enter the Session Initiation Protocol (SIP) An emerging signaling protocol for: – Initiating, – Managing, and – Terminating data, voice, and video sessions Connectivity using IP May be extended to accommodate features and services such as: – call control services, – mobility, – presence, – interoperability with existing telephony systems, and – more