Connection control system, connection control method and management server

A management server managing an association between an identifier of a SIM (Subscriber Identity Module) and an APN (Access Point Name), the management server comprising:

• a use-state change detection section configured to detect a change in a use state of the SIM;
• and
• a connection node control section configured to change the APN as a connection destination to be associated with the identifier of the SIM and delivers an association between the identifier of the SIM and the APN as the connection destination to a connection node, in a case where the use state of the SIM changes, wherein
• the use state of the SIM changes in accordance with a state of a line of the identifier of the SIM, and
• in a case where a line-opening processing server performs line-opening processing for the identifier of the SIM for which the line-opening processing is not performed based on transmitting, by the connection node, a connection request including the identifier of the SIM for which the line-opening processing is not performed to a specific APN connected to the line-opening processing server, the connection node control section changes the connection destination associated with the identifier of the SIM to an APN other than the specific APN, and delivers an association between the identifier of the SIM and the changed APN of the connection destination.

A connection control method controlling an APN (Access Point Name) as a connection destination of a terminal, the connection control method comprising:

• in a case where a connection node receives, from the terminal, a first connection request including an identifier of a SIM (Subscriber Identity Module) for which line-opening processing is not performed, connecting to a specific APN connected to a line-opening processing server and transmitting the first connection request to the line-opening processing server via the specific APN;
• notifying an update instruction including the identifier of the SIM to a management server from the line-opening processing server;
• changing the connection destination to be associated with the identifier of the SIM included in the update instruction to an APN other than the specific APN, by the management server;
• delivering the association between the identifier of the SIM and the changed APN as the connection destination to the connection node, by the management server;
• changing, by the connection node, the association between the identifier of the SIM and the APN as the connection destination managed by the connection node itself in accordance with the association between the identifier of the SIM and the changed APN as the connection destination delivered from the management server;
• disconnecting connection once from the terminal related to the identifier of the SIM;
• and
• connecting the terminal to the changed APN as the connection destination associated with the identifier of the SIM, upon receipt of a second connection request including the identifier of the SIM from the terminal.