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CONVERGE, COMMUNICATE, COLLABORATE Avistar Overview Changing the World of Communications - Video Conferencing Solutions for Government, Military and Enterprises

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CONVERGE, COMMUNICATE, COLLABORATE 2 2 Copyright 2008 Avistar Communications Corporation Avistar Clients Channel Distribution to Global 5000 Licensing Technology, White Labeling, and OEM Licensing Patent Licensing Distributor and Reseller Channel Sales Co-Marketing, Sales and Services to Enterprises Joint Collaboration engaging both Distributors and Resellers creating Communities across Markets Globally Technology and IP Licensing Client, Market and Partner Collaboration in Product Development Avistar Corporation in a Nutshell Strong Diversified Go-to-Market Strategy: 40-60% annual growth,

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CONVERGE, COMMUNICATE, COLLABORATE 3 Avistar C3 Product Overview Avistar C3 What is it? Real Time Video & Voice Face to Face Video & Audio Add In Simple Point to Point or Complex Multi Party Conferences Desktop, Conference Room or Remote Access Secure, Scalable & Reliable Web Presentation & Collaboration Full Presentations Via any Network Collaborate and Annotate Documents, Spreadsheets & Presentations Ask Questions Via Integrated Instant Messaging Electronically Survey Audience, See Results in Real Time Flexible, Cost Effective Solution Fully Bundled Solution Accessible in the Office, on the Road, or Home Office Integrates With Current Infrastructure Operates Over Firewalls & Compatible with Current Networks Simple to Use, Quick to Install

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CONVERGE, COMMUNICATE, COLLABORATE 4 Avistar C3 Solution Overview Avistar C3 Solution Benefits Delivers Superior User Experience at the desktop, conference room, or on the road Integrated H.323 support enables enterprises to leverage existing investments in video conferencing room systems and infrastructure End-to-end software management platform minimizes support costs and provides self-service capabilities for end-users Scalable solution that enables enterprises to start small (few sites and 100s of users) and grow installations over time (many sites and 1000s of users) Proven, high quality solution in use by thousands of users everyday Avistar provides an end-to-end enterprise video-enabled unified communications solution that integrates with the way people work

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CONVERGE, COMMUNICATE, COLLABORATE 5 Avistar Technology has caught up with the human characteristics of Communication Why Avistar? Market Drivers Technology Alignment Unified Communications BenefitSource of Improvement Clearer, faster communications Face/body language has 12x the communications content of words 76% say its easier to understand others in a face-to-face meeting 62% said face-to-face enabled quick decision making vs. 10% with audio Better than phone / web meeting Face-to-face meetings are 43% more effective than phone meetings 81% of executives said face-to-face was best at reducing confusion Only 5% felt audio/web was best way to communicate 23% give full attention to an audio conference; 55% do in an in-person meeting People are 8x more likely to do emails on an audio call than an in-person meeting Improved retention of information38% increase in retention for face-to-face meetings Increased absorption of information 40% increase in absorption of information 200% increase in learning with face-to-face meetings Stronger trust relationships, improved teamwork 90% of executives say face-to-face is best at establishing a high level of trust. Only 5% feel audio/web is best 75% said face-to-face negotiation is easier than with audio/web Avistar is a powerful communications tool. It has increased revenues by impacting our speed of decision making and the effectiveness of our global teams, allowing us to increase business capacity. For a firm of our global scope, effective, quick conversations are vital to us. Avistar enables us to have face-to-face visual communications between our teams worldwide, right from peoples desktops. Its been an extremely valuable tool for our business. Managing Director and Head of North America Credit Markets, Leading Global Bank Silent Messages Albert Mehrabian The Human Face Brian Bates/John Cleese

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CONVERGE, COMMUNICATE, COLLABORATE 6 Avistar C3 Solution Overview REDUCE COSTS AND INCREASE MARGINS IN UNCERTAIN TIMES: Save Money Reduce Travel Immediate ROI Improve Customer Service Shorten decision making processes Create differentiation between you and your competitors In todays market, more and more corporations large and small are looking for ways to save money and increase margins. One of the primary ways of doing this is in uncertain times is to immediately clamp down on travel and expenses. A natural and understandable action to take, HOWEVER this can have a very negative impact, when face to face time with your colleagues and clients is reduced relationships suffer and overall results decline There is a way to negate this!! Avistar provides a low cost, easy to maintain, robust desktop video conferencing solution that can be used from the office, the home, hotels and even your car. Avistar, through the use of its industry leading software based PC videoconferencing communications technology, can demonstrate it has saved corporations Big and Small millions of dollars in direct and indirect costs as well as assisting in speeding up decision making and improving communication effectiveness. Why Avistar Avistar is the only organisation with proven and scalable deployments of desktop videoconferencing software. Maintenance is low and reliability is in the 99% plus range. No other desktop videoconferencing product can substantiate these claims in the same price range. See it for yourself. Avistar C3 Solution Benefits: SAVE MONEY

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CONVERGE, COMMUNICATE, COLLABORATE 7 Avistar C3 Solution Components Avistar C3 Client High quality video conferencing application for desktops and room systems Avistar C3 Server Real-time communications server for managing video in the enterprise Avistar System Central Centralized, web-application for provisioning and managing infrastructure and resources Avistar C3 Administration Tools Remotely manage and monitor system components Avistar MCU (Optional) Integrated conferencing for Avistar endpoints and 3 rd party systems Avistar Collaboration Communities (Optional) Secure communications with other Avistar enterprises over the Internet Avistar C3 Client Avistar MCU Avistar System Central Management Tools Avistar C3 Server Avistar Platform

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CONVERGE, COMMUNICATE, COLLABORATE 8 Avistar C3 Client Features and benefits include: Presence-based, 1-click video calling and conferencing speeds interactions Consistent, high quality audio and video experience using industry standard codecs Interoperability with H.323 room systems and infrastructure leverages existing processes and investments Integrated mobility support enables users to work from home, the airport, or Starbucks Advanced telephony features such as transfer, call waiting, 2-line calling, hold/resume, and leave/get message supports existing communication processes Click-to-call with IBM Sametime and Microsoft Office via Smart Tags integrates video with existing business process Automatic device selection with support for USB webcams and headsets eases setup for end users Easily share data with remote participants using 3 rd party web conferencing tools using the quick launch Share button

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CONVERGE, COMMUNICATE, COLLABORATE 9 Avistar C3 Endpoint Solutions Avistar provides a range of endpoint solutions which all utilize the same Avistar C3 user interface: Avistar Desktop Bundle Avistar Office Bundle Avistar Mobile Teamroom Avistar Executive Teamroom Avistar Teamroom

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CONVERGE, COMMUNICATE, COLLABORATE 10 Avistar C3 Desktop and Office Bundles To ensure a high quality user experience, Avistar recommends the following media accessories: Standard Desktop Bundle Microsoft LifeCam VX-5000 Plantronics.Audio 625 USB Headset Premium Desktop Bundle Logitech QuickCam 9000 Pro Jabra GN2000 Office Bundle Logitech QuickCam 9000 Pro ClearOne Chat 50 Personal speakerphone To function, the Avistar C3 Client requires a camera, microphone and speakers. The camera requirements include the following: At least 10 fps, 320 x 240 resolution, I420 or YUY2 color space Must have own driver or support Windows UVC Driver The audio input and output device requirements include the following: DirectSound-compatible audio input and output. Capable of 16-bit mono or stereo at 16,000, 32,000, or 44,100 samples per second. Note: Price is generally a good indicator of quality. Very inexpensive options can provide a poor user experience.

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CONVERGE, COMMUNICATE, COLLABORATE 11 Copyright 2008 Avistar Communications Corporation Avistar C3 Teamroom AVISTARS C3 TEAMROOM A NEW PARADIGM Video conference rooms are typically large meeting rooms, not broadly available, are equipped with video endpoints that often require a technician to operate, and advance scheduling for use. Complexity, high-cost of operation, and lack of convenience are some of the reasons why video conference rooms have had limited success and use as collaborative tools throughout the enterprise. Avistar is now driving the evolution of video conferencing with our C3 Teamroom. We enable professionals with self-service video solutions that function within a variety of work environments, eliminating the need for technician assistance. As an extension of the Avistar desktop video network, the C3 Teamroom provides work groups with presence-based video, voice and data collaboration while delivering ease of use, high quality and reliability. A complete and turnkey solution. Designed to Accommodate 6 8 Participants in a Room Includes all hardware and software High Resolution PTZ Camera Speakerphone with noise cancelling microphone array and integrated audio add-in Includes a 24 Hi Res LCD Screen, Mini Tower, Wireless Keyboard & Mouse Powered by the Avistar C3 Software Complete with H.323 Gateway for interoperability MSRP Starting at $7,299 C3 TEAMROOM FEATURES

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CONVERGE, COMMUNICATE, COLLABORATE 12 Copyright 2008 Avistar Communications Corporation Avistar C3 Executive Teamroom AVISTARS C3 EXECUTIVE TEAMROOM A NEW PARADIGM Video conference rooms are typically large meeting rooms, not broadly available, are equipped with video endpoints that often require a technician to operate, and advance scheduling for use. Complexity, high-cost of operation, and lack of convenience are some of the reasons why video conference rooms have had limited success and use as collaborative tools throughout the enterprise. Avistar is now driving the evolution of video conferencing with our C3 Teamroom and C3 Executive Teamroom. We enable professionals with self-service video solutions that function within a variety of work environments, eliminating the need for technician assistance. As an extension of Avistars C3 Teamroom and C3 Desktop video conferencing solutions, the C3 Executive Teamroom provides work groups with presence-based video, voice and data collaboration while delivering ease of use, high quality and reliability. A complete and turnkey solution. C3 EXECUTIVE TEAMROOM FEATURES Designed to Accommodate 2 4 Participants in a Room Includes all hardware and software High Resolution wide-angle Camera USB Speakerphone device with noise-cancelling microphone array Includes a 22 Hi Res LCD Screen, Mini Tower, Wireless Keyboard & Mouse Powered by the Avistar C3 Software Complete with H.323 Gateway for interoperability MSRP Starting at $3,999

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CONVERGE, COMMUNICATE, COLLABORATE 13 Copyright 2008 Avistar Communications Corporation Avistar C3 Mobile Teamroom AVISTARS C3 MOBILE TEAMROOM A NEW PARADIGM Video conference rooms are typically large meeting rooms, not broadly available, are equipped with video endpoints that often require a technician to operate, and advance scheduling for use. Complexity, high- cost of operation, and lack of convenience are some of the reasons why video conference rooms have had limited success and use as collaborative tools throughout the enterprise. Avistar is now driving the evolution of video conferencing with our C3 Mobile Teamroom. We enable professionals on the go with a portable, robust, self-service video conference solution that functions in any work environment. Avistar C3 Mobile Teamroom gives traveling professionals the ease and portability to take video conferencing from location to location, providing instant connectivity with team members, customers and suppliers. As an extension of the C3 Teamroom, C3 Executive Teamroom, and C3 Desktop video conferencing network, the C3 Mobile Teamroom provides professionals on the go with presence-based video, voice and data collaboration while delivering ease of use, portability, high quality and reliability. A complete and turnkey solution. C3 MOBILE TEAMROOM FEATURES Designed to Accommodate 1 2 Participants in a Room High Resolution wide-angle Camera USB Speakerphone device with noise-cancelling microphone array Powered by the Avistar C3 Software Complete with H.323 Gateway for interoperability MSRP Starting at $1,199 Customer provided laptop shown above.

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CONVERGE, COMMUNICATE, COLLABORATE 14 Avistar C3 System Central Features and benefits include: Administrative user and role management Controls which users are permitted to use Avistar administrative tools and which operations they can execute. All administrative activity is logged to the central database. MCU Management Configure and monitor all MCUs in the enterprise to minimize support overhead Conference Monitoring Monitor all conferences in the enterprise. Administrators can view call statistics, hang up participants, and end conferences. End User Aliases Generate an external directory of H.323 addresses of Avistar users. System Configuration Controls system settings for administrative sessions and inactive administrative accounts. Centralized logging and reporting enables return on investment analysis Logs all usage and resource activities Standard user and system reports available in HTML, Excel, and PDF

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CONVERGE, COMMUNICATE, COLLABORATE 15 Avistar C3 Server Features and benefits overview: Dynamic network bandwidth management capabilities enable administrators to protect mission critical applications and ensure a consistent, high-quality experience Advanced call admission control based on network topology with support for 100 networks per server Support for mobile users Integrated H.323 support enables seamless integration with existing video conferencing system and infrastructure Zero-administration address book management with LDAP directory integration minimizes operating costs Integrated presence support enables users to see who is available Distributed architecture for scalability and resiliency enables a deployment to grow to thousands of users

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CONVERGE, COMMUNICATE, COLLABORATE 16 WAN 16 Copyright 2007 Avistar Communications Corporation Automatic Referral Enables Mobile Users WAN LAN New York Office John Smith NY C3SERVER NYC3SERVER LAN New York Office LAN London Office UK C3SERVER LAN London Office John Smith 1) NYC3SERVER 2) UKC3SERVER 1 2 Suppose a user regularly travels between NY and London Single C3 Server configuration in Avistar Conference (NYC3SERVER) Logs in from NY office Registers with NYC3SSERVER Logs in from London Avistar attempts to register with NYC3SERVER NYC3SERVER refers user to UKC3SERVER Avistar Conference registers with UKC3SERVER NY C3SERVER UK C3SERVER

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CONVERGE, COMMUNICATE, COLLABORATE 17 Integrated Support for H.323 Avistar H.323 interoperability overview High quality audio and video experience Support for H.264, H.263+, and H.263++ video codecs Support for G.722 audio codec Gatekeeper registration support for easy integration into a customers existing H.323 environment Avistar users can place calls directly to 3rd party systems, including rooms and MCUs A centralized global address book eliminates the need for users to know the systems details Alternatively, users can call H.323 systems by specifying the IP address or E.164 address H.323 systems can place calls directly to an Avistar users desktop by specifying their alias Aliases are managed centrally by System Central Access on-demand and scheduled conferences hosted on existing H.323 MCUs DTMF key pad enables Avistar users to enter conference numbers and pins Plugs into Avistar bandwidth management policies Each Avistar Server supports up to 25 simultaneous H.323 calls 17 Avistar Avistar Server H323 SW GW 3 rd Party H.323 Systems signaling media Avistar Client

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CONVERGE, COMMUNICATE, COLLABORATE 18 Avistar C3 Deployment Model: Infra in Data Centers Distributed architecture for scalability and resiliency US Datacenter EMEA DatacenterAPAC Datacenter AVNM Avistar MCUs AVNM C3 Servers Provisioning Performance Mgmt Avistar System Central US Datacenter AVNM Avistar MCUs AVNM C3 Servers AVNM Avistar MCUs AVNM C3 Servers

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CONVERGE, COMMUNICATE, COLLABORATE 19 Avistar C3 Multipoint Conferencing Avistar C3 Clients support multipoint conferencing using any H.323 MCU Codian, Tandberg, and Polycom MCUs supported Avistar C3 clients can be included in scheduled conferences or access on-demand conferences hosted on H.323 MCUs Avistar C3 Managed MCUs provide additional end user and system features: 1-click, ad-hoc conferencing for up to 4 parties Remote user hold, resume, and hang up Web-based remote management and monitoring of all MCUs via System Central Automatic and optimal MCU selection to optimize the user experience High availability and scalability via resources pooling Integrated QoS support using TOS with C3 Clients Radvision SCOPIA100 12/24 port models supported

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CONVERGE, COMMUNICATE, COLLABORATE 20 Avistar C3 Collaboration Communities Avistar C3 Collaboration Communities enable secure communications with other Avistar enterprise over the Internet Presence-based, 1-click calling and conferencing Easy to deploy with no firewall changes required High quality and scalable solution Avistar C3 Collaboration Communities leverage standards-based firewall traversal techniques Implements STUN/TURN/ICE for firewall traversal of SIP-based Unified Communications Solves NAT problem Use of ICE optimizes communications path Uses direct UDP paths where possible Reverts to tunneled operation where necessary Leverages relay servers in Avistar hosting center where required CPE deployments use NAT Proxies that provide centralized STUN/TURN/ICE functionality in more controlled fashion

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CONVERGE, COMMUNICATE, COLLABORATE 21 Avistar Collaboration Communities How does it work?

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CONVERGE, COMMUNICATE, COLLABORATE Avistar Strategic Direction and Roadmap

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CONVERGE, COMMUNICATE, COLLABORATE 23 Avistar C3 Managed Software MCU Benefits of an Avistar C3 Managed Software MCU Investment protection through software deployed on standard PC servers Deployment flexibility enables low cost of entry Highly integrated MCU minimizes support costs and provides self-service capabilities for end-users End user and system features of an Avistar C3 Managed Software MCU : 1-click, ad-hoc conferencing for up to 4 parties Remote user hold, resume, and hang up Web-based remote management and monitoring of all MCUs via System Central Automatic and optimal MCU selection to optimize the user experience High availability and scalability via resources pooling Transcoding and transrating support on all ports Include H.323 endpoints for seamless interoperability with existing room systems Up to 12 video ports of conferencing capacity per server System Requirements: Windows 2003 Server running on a Dual Core 2.5 GHz or higher processor and 3 GB RAM

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CONVERGE, COMMUNICATE, COLLABORATE 24 Avistar C3 Continuing Innovation Avistar C3 Strongest Platform Married to Strongest UI