ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,669, issued on May 13, was assigned to T-MOBILE INNOVATIONS LLC (Overland Park, Kan.).

"Default bearer use for multimedia sessions in wireless communication networks" was invented by A. Karl Corona (Maple Valley, Wash.), Nassereddine Sabeur (Bellevue, Wash.) and Joel Lee Arends (Renton, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments comprise a wireless communication network to maintain multimedia sessions in response to bearer failure. In some examples, the wireless communication network comprises Call Session Control Function (CSCF) circuitry. The CSCF circuitry requests a dedicated bearer to serve a requested multimedia s...