| 摘要 |
It is possible to control the data transfer between a proxy server apparatus and an application server that is connected to the proxy server apparatus. An value added service control command is added to an request message and/or the response data. In accordance with the value added service control command included in the request message, a first proxy server Ia controls whether it relays this request message directly to a destination and it relays this request message to the destination after transferring this request message to an application server 7 and applying the value added service. Further, based on the value added service control command which is included in the response data, the first proxy server Ia controls whether it relays this response data directly to a destination or it relays this response data to the destination after transferring this response data to the application server 7 and applying the value added service.
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