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US 2007/0178904 A1Published application
Call system
AssigneeFujitsu Limited
InventorTakuji Oyama
Life of this patent
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AssigneeFujitsu Limited
InventorTakuji Oyama
Estimating the term…
Provided is a technology by which a relay node relaying communications of a terminal detects a movement of the terminal and updates, as triggered by this movement of the terminal, information of a call processing device, thereby shortening a (period of) status in which a location of the terminal remains not to be coincident with location information registered in the call processing device. A system of the invention has a call control device performing call control between terminals on the basis of location information of the terminals, a location management device managing information about locations of the terminals and a relay node relaying communications of the terminals, wherein the relay node detects a connecting status with the terminal, and, when the connecting status with the terminal is changed, notifies the call control device of an update of the location information through the location management device.
A call system comprising a call control device performing call control between terminals on the basis of location information of the terminals, and a relay node relaying communications of the terminals,
A relay node relaying communications of a terminal subjected to call control by a call control device on the basis of location information of terminals, comprising:
A communication method executed by a relay node relaying communications of a terminal subjected to call control by a call control device on the basis of location information of the terminals, comprising steps of:
A recording medium recorded with a communication program executed by a relay node relaying communications of a terminal subjected to call control by a call control device on the basis of location information of the terminals, comprising steps of:
Dependencies are inferred from the claim text.