Patent ID: 7885208
Filing Date: 2011-02-08
Classification: H04L,H04M,H04Q

Abstract:
1. A method, comprising: transmitting via a data path a conference request directed to an application server providing a packet-switched conference call service to a circuit-switched network, the packet-switched conference call service provided using a connection between a packet-switched network and a user terminal via the circuit-switched network; receiving at the user terminal via the data path a temporary routing number as a conference routing number for the requested conference call service, the temporary routing number received in response to the conference request, the temporary routing number being sent to at least one other participant at one or more other user terminals connected to the application server via the circuit switched network or via one or more other circuit switched networks such that the user terminal and the at least one other participant at the one or more other user terminals receive from the application server the same temporary number to be used for the conference call service; establishing a circuit-switched call leg connection from the user terminal to a packet-switched network via a circuit-switched network using the temporary routing number as the conference routing number for the requested conference call service, wherein the circuit-switched call leg connection is used for providing a packet-switched conference call service to the circuit-switched network; and using the received temporary routing number to set up the circuit-switched call leg as a call leg of the conference call service.