Patent ID: 8380235

Claim:
A communication system comprising a plurality of service providing apparatuses providing a plurality of services via a wireless base station to a mobile communication terminal provided with a wireless communication function and a management apparatus connected to the plurality of service providing apparatuses, wherein the management apparatus detects whether or not any of the plurality of service providing apparatuses are in a service suspended state, and instructs service providing apparatuses other than a service providing apparatus having entered the service suspended state to release resources of the mobile communication terminal to which services have been provided by the service providing apparatus having entered the service suspended state, wherein the management apparatus comprises: a management table that stores processing association information in which MS identification information uniquely attached to the mobile communication terminal is associated with ASN-GW identification information uniquely attached to service providing apparatuses respectively providing services to the mobile communication terminal; a failure monitor that monitors whether or not the service providing apparatuses are in a service suspended state; a retriever that retrieves, based on ASN-GW identification information attached to a service providing apparatus recognized by the failure monitor to be in a service suspended state, MS identification information associated with the ASN-GW identification information from the management table, and retrieves, based on retrieved MS identification information, ASN-GW identification information attached to service providing apparatuses providing the mobile communication terminal with services other than said services from the management table; a release instruction signal creator that creates a release instruction signal that is an instruction for releasing resources of the mobile communication terminal to which the retrieved MS identification information is attached; and a first communicator that transmits the release instruction signal to the service providing apparatus to which the retrieved ASN-GW identification information is attached, the service providing apparatus comprising: a resource manager that releases, upon receiving the release instruction signal, resources of the mobile communication terminal instructed by the release instruction signal.