ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,650, issued on Jan. 28, was assigned to Clever Devices Ltd. (Woodbury, N.Y.).

"Dual fallback hardened VoIP system with signal quality measurement" was invented by Philip Bradley Bockrath (Issaquah, Wash.), Darryl G. Curtis (Mount Vernon, Wash.) and Paul A. Dennis (Wake Forest, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system is presented that includes secure push-to-talk voice functionality. Using encryption, authentication, user filtering, and integration with new and existing LMR systems, a secure voice platform ensures malicious software, unauthorized access and brute force security attacks will not compromise the voice communications...