Patent ID: 8185636
Filing Date: 2012-05-22
Classification: H04L,H04M

Abstract:
1. A computer-implemented method for providing clearinghouse services to a client device in an Internet Protocol (IP) telephony system, comprising the steps of: transmitting an IP telephony communication session set-up request for an IP telephony communication session to a proxy server; transmitting an authorization request from the proxy server to a clearinghouse service, the clearinghouse service being accessible only by the proxy server and one or more gateways; transmitting an authorization response from the service point to the proxy, the authorization response comprising the identity of one or more terminating gateways available to complete the IP telephony communication session, and an electronic authorization token generated by the clearinghouse service for each identified terminating gateway, the terminating gateways operating independently and without direct access by the proxy server such that the proxy server gains access to a terminating gateway only with the electronic authorization token; and selecting one of the terminating gateways with the proxy server to complete the IP telephony communication session.