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Custom routing for multiple carrier interconnection

  • US 5,903,639 A
  • Filed: 05/05/1997
  • Issued: 05/11/1999
  • Est. Priority Date: 11/21/1996
  • Status: Expired due to Term
First Claim
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1. A method of call routing for a local exchange carrier (LEC) operating a local exchange advanced intelligent network (AIN) controlled carrier network and one or more competing local exchange carriers (CLECs) having interconnection to end office switches in said LEC AIN controlled network, said method comprising the steps of:

  • a) setting in end office switches in said AIN controlled LEC network which are connected to CLEC subscriber stations and which have service switching point (SSP) capability, an originating trigger for said CLEC subscriber stations;

    b) initiating a call from one of said CLEC subscriber stations;

    c) activating said trigger in the end office switch to which said CLEC subscriber station is connected;

    d) responsive to the activation of said trigger sending from said end office switch to which said CLEC station is connected a message to a control point in said AIN;

    e) responsive to receipt of said message at said control point accessing a first database to determine if the call which activated said trigger is a local call;

    f) if it is determined that said call is a local call, accessing a second database to identify the CLEC to which the calling station subscribes; and

    g) routing the call in accordance with procedures pre-established by the CLEC identified.

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