ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,215, issued on Aug. 12, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).
"WiFi call identification for roaming subscribers" was invented by Muhammad Tawhidur Rahman (Bellevue, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, methods, and devices that relate to geo-location determination of roaming Wi-Fi calling are disclosed. In one example aspect, a method for wireless communication includes transmitting, by a first network element in a home network, a message to a second network element indicating an establishment of a roaming voice session using a non-cellular network access technology. The message includes an Internet Protocol (...