US Patent Issued to T-Mobile USA on Feb. 4 for "Selectively restricting Wi-Fi calls supported by telecommunications network" (Washington Inventors)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,219,656, issued on Feb. 4, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).

"Selectively restricting Wi-Fi calls supported by telecommunications network" was invented by Jhon Nelson Sihotang (Bellevue, Wash.) and Khurram Ahmad Mirza (Bellevue, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a session border controller (SBC) coupled to an internet protocol (IP) multimedia core subsystem (IMS) of a telecommunications network. The SBC obtains information indicative of a roaming profile of a particular subscriber associated with the telecommunications network. The roaming profile indicates geographic areas in which the particular s...