Abstract: A communications network, coupled to a first and a second port, for communicating a media resource; and a first and second real-time communication client, coupled respectively to the first and second ports, each of the clients including: a communications subsystem for receiving the media resource; a renderizer subsystem, responsive to a control signal, for rendering the media resource; an interface for generating the control signal; and a synchronization subsystem for communicating the control signal; wherein a first one of the communications clients generates the control signal and communicates the control signal to the second one communications client to render the media resource in substantial synchronization on the communications clients.