| The VS4000 delivers high-performance video communications with extensive 
    flexibility for custom integrations and applications.  With small form 
    factor, professional connectors, and premium audio/video quality, the VS4000 
    is the integrator's choice in or out of the rack. 
      
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          |  | Intelligent video algorithm selection for premium video quality 
          from low bandwidths (ITU-T H.264) to high (ITU 60 fields) |  |  | Embedded multipoint support up to two Mbps connects up to four 
          sites over IP, ISDN or mixed networks, plus one international analog 
          phone line; cascading up to 14 sites (10 video plus 4 audio) |  |  | Add simultaneous PC audio and XGA content while still seeing 
          presenter |  |  | Embedded graphics-based Web server for diagnostics and system 
          management via the Internet |  |  | RS-232 control / data communications port |  |  | Optional private network support; V.35, RS-530, RS-449, and RS-366 
          interfaces |  |  | Optional NIST-validated, FIPS-complaint AES (Advanced Encryption 
          Standard)security |  |  |