Network Management System
A system that constantly monitors a computer network for slow or failing components, and notifies the administrator when there are outages.
Remote Radio Heads
An operator radio control panel that uses an electrical or wireless interface that connects to a remote radio transceiver. This is important subsystem of modern distributed base stations.
Systems that allow users to watch audio or video content when they want, rather than waiting for a schedule broadcast. This can be done by streaming or downloading the content.