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Historically, the major expense in establishing a video conferencing system has been in the video technology, which requires a video camera, video display, and a fast data connection. Because of these requirements, video conferencing has been quite expensive until recently.
In recent years, IP (internet protocol) based video conferencing has been overtaking traditional ISDN-based systems. Internet video conferencing has the advantage that it is accessible to anyone with an internet connection and a webcam. In addition, it becomes possible to integrate live video with a web conferencing tool, allowing for a much richer multimedia environment for live meetings and presentations.
Video conferencing can be