US Patent Issued to T-Mobile Innovations on April 7 for "International internet protocol multimedia subsystem (IMS) call network authorization" (Washington Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,453, issued on April 7, was assigned to T-Mobile Innovations LLC.

"International internet protocol multimedia subsystem (IMS) call network authorization" was invented by Joel L. Arends (Renton, Wash.), Saqib Badar (Bellevue, Wash.) and Nassereddine Sabeur (Bellevue, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of authorizing an IMS call in a foreign country for a wireless communication device that has a wireless communication subscription service with a US wireless communication service provider. The method comprises receiving a request to originate an IMS call by a HSS located in the US, wherein the request is received from a first...