BILLING SYSTEM FOR MESSAGE SERVICE DURING GLOBAL ROAMING AND A METHOD THEREOF, CAPABLE OF ACTIVATING MESSAGE SERVICE BY APPLYING FLAT RATE SCHEDULE TO MESSAGE SERVICE THROUGH PACKET NETWORK DURING INTERNATIONAL ROAMING

摘要

PURPOSE: A billing system for message service during global roaming and a method thereof are provided to apply flat rate schedule to message service through packet exchange network during international roaming, thereby providing the message service at low cost in service provider position.;CONSTITUTION: If a message is received through a packer exchange network form the first mobile terminal(111) of the first mobile communication network(110), a SMSC(Short Message Service Center)(122) determines the message transmission according to user charge information of the first mobile terminal. The SMSC transmits the message to the second mobile terminal(125) of the second mobile communication network(120) according to the result. According to the SMSC request, a billing center(123) provides the user charge information.;COPYRIGHT KIPO 2010