The Telex RTS Model 803 is an advanced intercom master station used in demanding professional environments such as television broadcast studios, theaters, and live event production control rooms. It features 12 individual channels of communication, allowing the operator to speak to and listen to various assigned groups or individuals within the intercom loop. The station provides essential features like call signals, integrated speaker/mic operation (via a headset or gooseneck microphone jack), and sophisticated programming capabilities to configure communication paths and roles. Housed in a durable 1U rackmount chassis, the 803 offers robust build quality and comprehensive connectivity for integrating with other audio systems and remote user stations.