Automatic radio telephone system interconnecting radio stations - has switching network independent of switching instrument of existing systems

System uses multi channel radio communication equipment with free channel search. Each radio channel has fixed position one way transmission and receiving instruments. The radio stations and other link up stations are switched into a control unit which is programmed and has registers and is operated by the duplex system. The switching network is independent of the switching instruments of the existing communication systems. The outputs of the switching network connected to the radio stations are in each case linked to one channel unit, while the outputs of the channel units are connected to the fixed one way transmitters and receivers. The subscriber instruments are connected to the network via a selector system.