SIPc, a multi-function programmable SIP user agent in CINEMA (Columbia InterNet Extensible Multimedia Architecture) presented by – Xiaotao Wu, Joint work with Ron Shacham, Matthew J. Mintz-Habib, Anshuman S. Rawat, Kundan Singh, and Henning Schulzrinne Project Objectives A multi-function programmable SIP user agent for multimedia communications, such as audio, video, white board, desktop sharing, shared web-browsing, location-based services, networked appliance control. Multiple functions in the user agent can easily interact with each other in a programmable way to provide communication services.