ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,161, issued on April 14, was assigned to peiker Holding GmbH (Bad Homburg, Germany).
"Mission critical push-to-talk operations" was invented by Lutz P. Richter (Mixdorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for providing communications services, comprising a first wireless communication network with a MCPTT infrastructure suitable for MC PTT communication and a relay which transmits the communication to a second wireless network in which terminals which participate in MCPTT communication are registered as MCPTT clients, characterized in that the relay takes over the data exchange necessary for setting up MCPTT voice commu...