| 摘要 |
A communication system of the invention comprises an application server (10) and a relay apparatus (20) that relays communications between the application server (10) and a communication network (40). The application server (10) comprises a communication unit (11) for transmitting, to the relay apparatus (20), a first message in which a first identifier that identifies a communication terminal (30), with which the application server (10) is to communicate via the communication network (40), has been set as the destination of transmission of the first message. The relay apparatus (20) comprises: a conversion unit (21) for converting the first identifier to a second identifier that uniquely identifies the communication terminal (30) in the communication network (40); and a communication unit (22) for transmitting a second message, in which the second identifier has been set as the destination of transmission of the second message, to the communication terminal (30) via the communication network (40). |
