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PC software based – no special hardware
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Point-to-point and multipoint (unlike Skype)
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Good picture quality (unlike Skype)
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End-user control of multipoint screen layout (like Access Grid)
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No central multipoint bridge, and hence no need to book (unlike standards-based video conferencing)
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Users set-up their own ‘virtual meeting places’ and their own calls/sessions, hence no need to book anything, and no need for a system operator (unlike access grid)
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Standards compatible – can include any standards-compliant participants (unlike access grid and Skype)
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Private virtual ‘rooms’ and encryption to control access by others
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Shared white-board and shared desk-top (in common with many other video conferencing systems)
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Inbuilt instant messaging (text chat) and file sharing.
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Operates over the internet (in common with most other video conferencing systems)
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Developed by the research community for the research community (like the web)
