Communication service management system, short message service management system, communication relay apparatus, communication service management method, and short message service management method

Abstract

It is made possible to accurately perform connection determination of whether the line connection satisfies a predetermined connection permission condition in a communication service for transmitting data in a store-and-forward system from a network, in which a calling terminal device is located, to a network, in which a receiving terminal device is located, through one or more communication relay apparatuses of another network and a provider. For this end, in a procedure of transmitting the data in the store-and-forward system from a network (source network) N, in which a calling terminal device MSis located, to a network (destination network) N, in which a receiving terminal device MSis located, through one or more communication relay apparatuses PFand PFof another network Nand providers Pand P, address information in the source network Nis maintained without being overwritten, so that the connection determination in the destination network Nis accurately performed.