Design and implementation of a microprocessor controlled integrated voice communications system

The effects of implementation of microprocessors and LSI circuits to produce a new generation of integrated voice communications systems (IVCS) are explored. The IVCS includes a headset as a loudspeaker and function keys for communications over various facilities. The design concept integrates radio and telephone communications channels, push button circuit selection, push-to-talk switches, a loudspeaker in the console, and intercom dialing capability. No single component failure is permitted to make the entire system inoperative, and hard-wiring is eliminated. Additionally, rewiring is ameliorated by the flexible nature of LSI. Block diagrams are provided for the circuitry of the system, which is intended for use in ATC, air defense networks, C3 applications, public safety, police and fire systems, and corporate communications.