Media Conferencing

Communication is the process by which any message is given or received through talking, writing, or making gestures.
Text chat is the oldest and widest means of communication and it is largely employed over the internet as it requires least bandwidth.
Voice chat has led to a significant increase in distant communications where two or more people from opposite ends of the world can talk almost free of cost. It is replacing the telephony calls as they are expensive.
Video chat is a peer-to-peer communication where recipient and sender interact via video and audio transmissions simultaneously. Video conferencing is a multi-way communication. Recipients can transmit back to the sender. It is a way for presentations or meetings to be "broadcast" or “unicast” over a network (e.g. the Internet) to a select group of

people who may be quite a distance from the actual event. The live video is sent over the network by the means of a streaming program.