a smart delivery system is provided for transmitting video , audio , hyper - text and web documents to end users via the internet over telephone lines , fiber optics , satellite links , or other direct communications on a non - realtime discontinuous basis in which the server providing the information periodically ascertains whether the end user terminal is busy . if so , the transmission to the end user is terminated and the information is stored until such time as the “ busy ” indication is terminated . in one embodiment , the indication for the end user of incoming information is in the form of an icon generated on - screen on which the user can click to obtain the sought - after information .