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Tandem Access Controller Within The Public Switched Telephone Network

  • US 20120120853A1
  • Filed: 01/25/2012
  • Published: 05/17/2012
  • Est. Priority Date: 05/04/2000
  • Status: Active Grant
First Claim
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1. A method of using call control criteria to route a communication between a user with access to a voice over IP (VOIP) network, and a called party with access to the public switched telephone network (PSTN) comprising:

  • receiving at a control device a signaling message indicating a communication request from the user;

    using information in the communication request to retrieve call control criteria from a database, where the call control criteria has been derived from selections previously made by said user via a web server; and

    using the communication request message combined with the call control criteria to route the communication to the called party via a class 4 switch.

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