System and method for rerouting data calls to internet service provider via lowest access point in a telephone network
US6327358A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Apr 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/0025
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone network redirects calls intended for an Internet Service Provider (ISP) to one of a plurality of available Internet Protocol (IP) gateways operated by the ISP. A call is received by the telephone network at an originating switch from a subscriber's calling terminal, the call directed to a toll-free-number or a central number (TFN) for the subscriber's ISP. The originating switch interacts with the signaling network via a coupled service switching point (SSP) to request a Dialed Number (DN) corresponding to the TFN. A destination switch (or a Private Branch Exchange "PBX" coupled to the destination switch), instead of completing the call, redirects the call to a new IP gateway coupled to a new destination switch or coupled PBX. The call is then routed from the calling terminal to the new IP gateway via the originating switch and the new destination switch via a lowest point in the traffic network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.