ADAPTOR FOR EXTERNALLY CONTROLLING CALL TRANSMISSION AND RECEPTION FUNCTION OF PORTABLE TELEPHONE SET

摘要

PROBLEM TO BE SOLVED: To provide an adaptor that is mounted on a portable telephone set to externally control its call transmission/call reception function and to provide a transceiving method for digital information employing this adaptor. SOLUTION: The adaptor with a function of transceiving a digital signal via an interface is mounted on a portable telephone set main body to transmit/ receive digital information via a public communication channel in this method. The transceiving method for the digital information by using a portable telephone set and the adaptor used for the method is characterized in that a user of information inserts the adaptor to an external connection terminal of the portable telephone set main body and makes a call by the portable telephone set on the basis of data entered to the adaptor which is mounted on the portable telephone set main body and accesses a telephone terminal of a specific destination to connect with the communication channel to transmit/receive the information.