The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2014
Filed:
Jun. 29, 2011
Pierre Boulos, Richardson, TX (US);
Marvin Bienn, Dallas, TX (US);
David Brombal, Plano, TX (US);
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A system and method to provide call delivery to an Internet Protocol Multimedia Subsystem (IMS) network for a Mobile Directory Number (MDN) homed in a second generation (2G) wireless network, without requiring Wireless Intelligent Network (WIN) operations and associated Mobile Switching Center emulation (MSCe) translations for routing the call request. A Home Location Register (HLR) determines whether the subscriber has subscribed to the IMS services. The HLR-based subscriber profile is enhanced with new IMS-related subscriber information. Enhanced American National Standards Institute-41 (ANSI-41) Mobile Application Part (MAP) operations and a new ANSI-41 parameter allow the MSCe to re-route the call origination request from a Public Switched Telephone Network (PSTN) to an entry point for the IMS network based upon the new IMS-related subscriber information received from the HLR. A Domain Name Server (DNS) supports routing-related traffic distribution.