COMMUNICATION SERVICE SYSTEM, COMMUNICATION SYSTEM, DEVICE FOR MANAGING CHARGE FOR COMMUNICATION, AND METHOD FOR PLACING CHARGE FOR COMMUNICATION

摘要

PROBLEM TO BE SOLVED: To appropriate a prepaid available communication capacity to a deferred charge for communication prepaid available communication capacity (the charge for available communication or the like) from a user's mobile machine or the like. SOLUTION: A card service controller 340 receives a prepaid card number and the machine number of a mobile machine 310 from the mobile machine 310. The received prepaid card number is converted into a prepaid charge for available communication corresponding to this card number. The converted prepaid charge for available communication and the machine number of the mobile machine 310 are transmitted to a charge system 370. The charge system 370 subtracts the charge for communication, corresponding to the received machine number of the mobile machine 310, according to the received prepaid charge for available communication.