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System Requirements

System Component Minimum Requirement
OS and Software

Microsoft Windows Operating Systems:

  • Windows 2000 Professional
  • Windows XP Professional Edition
  • Windows XP Home Edition

Microsoft DirectX 8.1 or later should be installed.

Microsoft Internet Explorer Version 6 or higher
Hardware and Configuration

Best quality video and audio (QCIF at 30fps with 4 to 6 videos opened; CIF at 15fps, 1 to 3 video windows open):

  • Pentium 4, 1.5-2.53 GHz, 256- to 512-MB RAM (Windows XP)

High-level video, audio and presentation (QCIF at 15 fps with 4 video windows open; CIF at 15 fps, 1 or 2 video windows open):

  • Pentium III, 800 MHz, 256-MB RAM (Windows 2000 or Windows XP)

Mid-level video, audio and presentation (QCIF at 15 fps with 4 video windows open):

  • Pentium III, 500 MHZ, 128-MB RAM (Windows 2000 or Windows XP)

The video frame rates can be increased in anyone of these configurations. To increase video frame rates, decrease the number of video windows or the vide window size. For example, with the recommended system, you could open up 6 to 8 SQCIF video windows.

Webcam Video out - USB (1 or 2)
Firewall Configuration*
Port Purpose
TCP Port 1503 CUData protocol (T.120 data)
TCP Port 7648 Outgoing Conference Client connection to a Conference Server or another Conference Client
TCP Port 7650 CUData protocol (moderation)
UDP Port 56800 Sending/receiving RTP video streams

* Optional Tunneling Plug-in: Port 443
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