Video, voice and data are integrated using existing telephone connections
by using a video network server to receive and transmit video signals to
and from clients using telephone wires. Client frequency division
multiplexing couplers, each associated with one of the clients, receive
video and telephone signals from the client and frequency multiplex them
onto the telephone wires for transmission. They also receive video
signals from the server and frequency demultiplex them for transmission
to the client. A video frequency division multiplexing coupler connected
between the video network server and each of the client frequency
division multiplexing couplers receive the video and telephone signals
from the clients and transmit only the video signals to the video network
server. A telephone frequency division multiplexing coupler connected
between a telephone network switch and each of the client frequency
division multiplexing couplers receive the video and telephone signals
from the clients and transmit only the telephone signals to the telephone
network switch.