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Public IP transport network

  • US 6,097,719 A
  • Filed: 03/11/1997
  • Issued: 08/01/2000
  • Est. Priority Date: 03/11/1997
  • Status: Expired due to Term
First Claim
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1. In a public switched telephone network (PSTN) having a plurality of PSTN multiport nodes located respectively in a plurality of served geographical areas, said multiport nodes connected to a PSTN data network having port numbers corresponding to virtual numbers associated with respective internet service providers subscribing to PSTN service through said multiport nodes via said PSTN data network, a method for routing a data call, placed to one of said virtual numbers from a calling station location in said PSTN, to a respective one of said plurality of multiport nodes predesignated to serve the geographical area containing the location of the calling station, comprising the steps of:

  • determining the identification of the calling station;

    accessing a first database having content relating the identification of the calling station to an indicia code of the calling station'"'"'s geographical location to obtain the calling station'"'"'s corresponding indicia code;

    accessing a second database having content relating the calling station'"'"'s indicia code to a number of the internetwork service provider subscriber node port serving the geographical area of the calling station to obtain a related node port number; and

    routing the call to the node associated with the port number obtained in said step of accessing said second database.

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