1. Ezenia! A new architectural model April 7, 2003 Ezenia! Confidential & proprietary

2. Ezenia’s New Product Value Proposition We will exceed the value of competitive products by: Having functionality greater than that of IWS 3.0: Support of a larger number of 3 rd party Apps from a given room’s toolset Significantly more API’s allowing greater integration/interoperability with other Conferencing applications Minimum of PL3 Compliance, maybe PL4 Ability to support wireless devices via thin client Sustenance of the Conferencing Center concept with Auditorium Encrypted audio Improved video…capable of video conferencing using inherent audio and video components Capable of supporting a Media Server For intensive media functions (video processing; audio transcoding) For support of legacy H.323 videoconferencing For connectivity to other network topologies (switched, 3G, etc.)

3. The Architecture Ezenia!, the Collaboration and Communication solutions company (Product sales, On Site Integration, Support) 3G-web gateway IP Network/Internet PSTN Handsets IP/ Circuit switched gateway Media Server (OEM): All G.dots/pstn Transcode Video processing IWS Application Server: “Dolly”-based Partner elements Basic A/V Wireless network Wireless Handsets supports IWS thin client SIP SIP/H.323/other SIP/other SIP H.323 IWS Desk Top Clients IWS, w/ integral H.323 VTC Or, just LaunchPad Windows, Solaris, Mac clients APIAPI 3 rd party apps ?? Oracle DB Server Note: More boxes equals greater and less expensive Scalability and improved Reliability Windows Solaris Apple ?