
Video conferencing is the telecommunication technologies allowing two or more persons at different locations to communicate by simultaneous two-way audio and video transmissions. Video conferencing services differ from the video call services, video conferencing majorly help in conferencing multiple locations over individuals. Video conferencing services providers have to follow certain standards laid by International Telecommunications Union (ITU) such as ITU H.320, ITU H.264 and ITU V.80. Key equipment used in video conferencing services are microphones, conference bridges, peripherals, cameras, external compression cards, internal compression cards, monitors, codecs and codec boards, software for video conferencing, desktop computers, phone links, roll-abouts and others.