ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,786,807, issued on Nov. 3, was assigned to T-MOBILE INNOVATIONS LLC (Overland Park, Kan.).
"Evolved packet system fallback handling" was invented by Narayanan Govindan Kasi (Olathe, Kan.) and Saravana Kumar Velusamy (Overland Park, Kan.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for optimizing evolved packet system (EPS) fallback handling in telecommunication networks. The system ensures voice call continuity during transitions from 5G to 4G when data session setup is delayed or fails. It detects EPS fallback at an IP multimedia subsystem (IMS) session management function (SMF), receives a context request from an acce...