Patent ID: 6366560
Filing Date: 2002-04-02
Classification: H04L,H04M,H04W

Abstract:
A route selection service control system provided in a common communication network to which are connected communication networks operated by a plurality of telecommunication carriers adopting different call charging systems, for selecting a specific route from among routes connecting an originating-side terminal to each of terminals owned by an identical subscriber and connected to respective communication networks operated by different carriers, said route selection service control system comprising:terminal type storing means for storing an identification number of a subscriber and terminal types and terminal numbers of a plurality of terminals owned by the subscriber in a manner associated with one another; unit charge storing means for storing, with respect to each terminal type of originating side, unit charges applicable to different terminal types of terminating side and to different distances between terminals of originating and terminating sides; reading means for receiving an identification number of a terminating-side subscriber from an originating-side terminal, and reading out the terminal types and terminal numbers of a plurality of terminating-side terminals associated with the identification number of the subscriber by referring to said terminal type storing means; position information acquiring means which, if the terminating-side terminals read out by said reading means include a mobile communication terminal, makes an inquiry to a position information management section associated with the terminal to obtain a current position of the terminal; distance calculating means for calculating a distance between the current position of the terminating-side terminal obtained by said position information acquiring means and the position of the originating-side terminal; unit charge extracting means for referring to said unit charge storing means to extract, with respect to each of the terminating-side terminals, a unit charge applicable to the terminal type of originating side, to the terminal type of terminating side read out by said reading means, and to the distance calculated by said distance calculating means; and selecting/notifying means for selecting a terminating-side terminal which shows a minimum value among the unit charges extracted by said unit charge extracting means and associated with the respective terminating-side terminals, and notifying an originating-side communication network of the terminal number of the selected terminal.