Nortel/SIPcomm/Columbia co-operation in IP Telephony Henning Schulzrinne (Columbia University) Joe Flicek (SIPcomm)

Columbia/SIPcomm Technology Complete SIP-enabled communications infrastructure: SIP proxy server for call routing, programmable services using cgi, Java servlets and CPL (XML-based call processing language) SIP conferencing server for large conferences (up to 100 participants) SIP unified messaging server SIP-to-H.323 gateway SIP user agent (Windows, Linux, …), including instant messaging, events and presence

Scope of Project Seamlessly integrate SIP-based open IP telephony infrastructure with Nortel Meridian PBX Several alternatives: (1) Add SIP to Nortel Ethernet board (2) Stimulus-to-SIP translator, making SIP terminals appear like I2004 terminals (3) Integrate with any Nortel SIP-based linecards

Value to Nortel Add new capabilities to existing and new Meridian installations Programmable features -> integration with corporate databases, calendars, off-site phones More cost-effective incremental transition for installed base New services, e.g., integration with presence/IM

Resources Needed Resources depend on project variant: (1) Development environment for board (2) I2004 phones and protocol description (3) Access to Nortel Meridian expertise and possibly a PRI/Ethernet interface (for CLID) Student support ($50k/year/student) SIPcomm developer support