Patent ID: 7100166

Claim:
A network application decentralized execution system, comprising: a network application server storing an application execution script for a concentrated switched network, the application execution script allowing communication between terminal equipments through an exchange; and two or more terminal equipments connected to said server and capable of downloading the application execution script from said server, each said terminal equipment including a connection state variation detection section ( 114 ) for detecting a variation of a connection state of said terminal equipment, a connection state control section ( 115 ) for controlling the connection state of said terminal equipment in response to the detected connection state, and an application plug-in section ( 117 ) for plugging in the application execution script selected and downloaded (S 7 ) from said network application server to the terminal equipment so that the downloaded application execution script is executed between the two terminal equipments without intervention of any exchange, wherein, said connection state variation detection section and said connection state control section operate in accordance with the downloaded application execution script plugged-into the application plug-in section, and the state variation detection section supervises a connection event designated by the application execution script and includes each of a connection of a call being completed, the connection of the call coming to an end, a call destination being busy during a call connection attempt, and a geographic position of a connected terminal equipment changing.