Video conferencing uses telecommunications of audio and video to bring people at different sites together for a meeting. This can be as simple as a conversation between two people in private offices (point-to-point), or involve several sites (multi-point) with more than one person in large rooms at different sites. Besides the audio and visual transmission of meeting activities, video conferencing can be used to share documents, computer-displayed information and whiteboards.
Video conferencing offers possibilities for companies, schools, colleges and libraries to use these systems for a variety of purposes, including formal instruction (courses, lessons and tutoring), connection with guest speakers and experts, multi-school project collaboration, professional activities and community events.