TeamTalk

TeamTalk is a freeware conferencing system which allows users to participate conferences over the Internet.

Users can chat using voice and webcam as well as share desktop applications, like e.g. PowerPoint or Internet Explorer.

Here is a list of the main features:

- Real time audio and video conversations - Public and private instant text messaging - Share applications on your desktop - Share files among group members - High quality audio codecs with both mono and stereo - Push-to-talk and voice activation - Record conversations to disk - Standalone server for both LAN and Internet environments - Private rooms/channels for every group - User authentication with accounts