US Patent Issued to T-Mobile USA on Jan. 13 for "IMS PDN/PDU for emergency call" (Washington, Kansas, Missouri Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,879, issued on Jan. 13, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).

"IMS PDN/PDU for emergency call" was invented by Hang Hoi Yau (Sammamish, Wash.), Christopher Joul (Bellevue, Wash.), Hyung Keun Choi (Overland Park, Kan.), Lin Zhang (Overland Park, Kan.), Syed Hassan Raza (Overland Park, Kan.), William Hooker (Seattle), Srinivasa Rao Bodapotula (Bellevue, Wash.) and Anthony James Wageman (Lees Summit, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Solutions for placing an emergency call over a wireless network improve speed and reliability by prioritizing using an internet protocol (IP) multimedia subsystem (IMS) packet data network (...