COMMUNICATION SYSTEM SELECTIVELY USING ANY OF PLURAL RADIO COMMUNICATION TRANSMISSION SYSTEMS

PROBLEM TO BE SOLVED: To provide a communication system in which a radio communication equipment with a desired radio communication transmission system required by the user is selected among radio communication equipments of one radio communication system or over or radio communication equipments with different radio communication transmission systems each other through the use of a controller. SOLUTION: A microprocessor 10 uses one equipment 90 desired by the user among plural equipments 90 employing different radio communication transmission systems. A storage device 70 stores plural software programs and provides an output of a software operating normally the equipment made available by the microprocessor 10 among them. A controller 60 reads the corresponding software from the storage device 70 and provides an output of a communication signal for data exchange. A selection section 80 selects the equipment 90 so as to form a communication path only for the equipment made available.