A taxonomy of multimedia videoconferencing system: Technologies and issues

With the rapid development of network technology, Internet services has revolutionized form a simple text into a host text, audio, video and other streaming services. Technological advances of the Internet have allowed the development of new services like multipoint multimedia applications: long-distance education, IPTV, telemedicine, distributed interactive games and video-conferencing systems. In this paper, we focus in the most complex type of video communication: video-conferencing systems. They allow interactive communication and facilitate the collaborative work among the users regardless of their geographical location in multi domain like business, medicine and more recently in everyday life. In this paper, we present a set of videoconferencing protocols that have been proposed in recent literature and we describe a variety of proposed videoconferencing solutions and classify them according to their characteristics such as network architectures and video coding technologies.