Patent ID: 7424101
Filing Date: 2008-09-09
Classification: H04M

Abstract:
1. A method for making a call that is billed to a subscriber's telephone account, comprising: receiving a request to make the call on a packet-switched network; delivering the request from the packet-switched network to a circuit-switched network; initiating, over the circuit-switched network, a first leg of the call to a caller device based on the request; forwarding, over the circuit-switched network, a second leg of the call to a receiver device; specifying a 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 the circuit-switched network, the first leg and the second leg to make the call between the caller device and the receiver device; and billing the call requested on the packet-switched network to the subscriber's telephone account on the circuit-switched network.