| 摘要 |
The present invention provides a function of enabling common carriers to easily perform the customization of restriction information and restriction guidance, in which an AS apparatus, upon receipt of a connection start request from a terminal through an MGW apparatus, confirms whether or not a restriction state is in effect, and when no restriction is in effect, performs connection to the terminal, and when restriction is in-effect, acquires a restriction class Key to transmit a signal, to which the aforementioned acquired restriction class Key has been added, to the MGW apparatus; and the MGW apparatus, upon receipt of the signal, acquires a restriction class Key to edit and transmit to the aforementioned terminal, a restriction guidance signal which indicates the restriction content by using the data associated with the restriction class Key.
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