Patent Number: 8,792,481

Title: Methods, systems, and computer program products for providing inter-carrier IP-based connections using a common telephone number mapping architecture

Abstract: A system includes a network entry point configured to receive and process internet protocol (IP) based connection requests originating from outside the communications network, and a telephone number mapping (ENUM) database configured to store a uniform resource identifier (URI) of the network entry point and to respond to a request for routing information for a subscriber terminal within the communications network received from a remote entity outside the communications network by providing a naming authority pointer resource (NAPTR) record including the URI of the network entry point to the remote entity in response to the request for routing information.

Inventors: Ku; Bernard (Austin, TX)

Assignee: AT&T Intellectual Property I, L.P.

International Classification: H04L 29/12 (20060101)

Expiration Date: 7/29/12018