| 摘要 |
PURPOSE:To make unnecessary the transmission of charging signal and to increase the service, by assigning specified registration number (cryptograph) to the service desired people of public phone for mobile communication and filing this cryptograph at the exchange network side. CONSTITUTION:When a given registration number (cryptograph) is dialed 1 in the mobile station 10, temporary storage 2 is made and the dial number is fed from the unit main body 3 to the base station 20 via the antenna 6. Next, at the base station 20, the control circuit 10 collates the cryptograph received 9 and that registered in the file 11, and communication line is set by interpreting the telephone number of opposing party and controlling the exchanger switcher 12 when agreement, and the start of communication is instructed to the mobile station 10 succeedingly. On the other hand, when the mobile station 10 receives this communication start instruction, the control circuit 4 interpretes the telephone number of opposing party stored, starts the charging based on the time difference on distance method, and the communication fee every charging period is displayed on the charge display unit 5, and the base station 20 integrates 10 the communication charge and stores 11 it after the end of communication. |
