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Methods and systems for making telephone calls

  • US 7,251,317 B1
  • Filed: 12/12/2002
  • Issued: 07/31/2007
  • Est. Priority Date: 01/10/2002
  • Status: Expired due to Fees
First Claim
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1. A method for making a call that is billed to a subscriber'"'"'s telephone account, comprising:

  • receiving a request to make the call from a non-PSTN network;

    initiating a first leg of the call to a caller device based on the request;

    initiating a second leg of the call to a receiver device based on the request;

    specifying the subscriber'"'"'s number in a setup message for the second leg of the call;

    sending a query message when the setup message triggers a setup trigger, the query message containing the subscriber'"'"'s number and at least one of a calling party identification and a charge number;

    sending a response message containing the subscriber'"'"'s number substituted in the at least one of the calling party identification and the charge number;

    connecting, over a PSTN, the first leg and the second leg to make the call between the caller device and the receiver device; and

    billing the call to the subscriber'"'"'s telephone account on the PSTN.

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