US Patent Issued to T-Mobile USA on July 29 for "Call setup for evolved packet system fallback" (Washington, Texas Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,376,172, issued on July 29, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).

"Call setup for evolved packet system fallback" was invented by Muhammad Tawhidur Rahman (Bellevue, Wash.) and Chun Keet Foong (Whitesboro, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for setting up a communication session associated with Evolved Packet System Fallback (EPSFB) are described herein. A fifth generation telecommunications network can implement a server to determine that a user equipment (UE) is incapable of establishing a Voice over New Radio (VoNR) call due to a chipset or other technology used by the UE. The server can send a message (e.g...