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Overload protection for on-demand access to the internet that redirects calls from overloaded internet service provider (ISP) to alternate internet access provider

  • US 5,933,490 A
  • Filed: 03/12/1997
  • Issued: 08/03/1999
  • Est. Priority Date: 03/12/1997
  • Status: Expired due to Term
First Claim
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1. A wide area communication system comprising:

  • a switched telecommunication network including trunked together program controlled switching systems coupled to user terminals and providing dial-up connection between selective user terminals;

    a control signaling network separate from said trunked network and including a controller coupled to said switching systems and having data storage associated therewith;

    a packet switched internetwork of spaced computer networks;

    a first internetwork service provider having an interface with said internetwork;

    said service provider interface being connected to a first of said switching systems via a dial-up telecommunication link capable of providing simultaneous dial-up connection of said interface to multiple terminals connected to a second of said switching systems to provide to said multiple terminals simultaneous access to said internetwork;

    a second internetwork service provider having an interface with said internetwork;

    said second service provider interface being connected to one of said switching systems in said telecommunication network;

    said controller monitoring dial-up calls to said telecommunication link to detect predetermined conditions related to dial-up calls placed by said multiple terminals;

    said data storage having stored therein data representing said predetermined conditions;

    said controller transmitting control signals to effect the redirection of dial-up calls placed to said telecommunication link from said link to said second service provider interface via said one of said switching systems.

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