General Dynamics C4 Systems received the first production order from the Federal Aviation Administration (FAA) for new software-defined, Voice over Internet Protocol (VoIP) CM-300/350 UHF and VHF air traffic control (ATC) radios, related accessories and training materials. The $25 million order will begin a new chapter in ground-to-air communications as the next-generation radios deliver crisp, clear communication between pilots and air traffic controllers.