Comtech Telecommunications Corp., together with its subsidiaries, provides critical communications technology and solutions in the United States and internationally. It operates through Satellite and Space Communications; and Allerium segments. The Satellite and Space Communications segment offers satellite ground infrastructure technologies, services, and system integration that facilitates the transmission of voice, video, and data over GEO, MEO and LEO satellite constellations, including traveling wave tube power amplifiers, satellite modems, VSAT platforms, and frequency converters; and advanced cybersecurity training services. This segment also provides over-the-horizon microwave troposcatter equipment that can transmit digitized voice, video, and data over distances up to 200 miles using the troposphere and diffraction, as well as engages in the procurement and supply chain management of electrical, electronic, and electromechanical parts for satellite, launch vehicle, and manned space applications. Its Allerium segment offers 911 solutions, which includes emergency call routing, location validation, policy-based routing rules, logging, and security functionality; emergency services IP network transport infrastructure for emergency services communications and support; call handling applications for public safety answering points; wireless emergency alerts solutions for network operators; and software and equipment for location-based and text messaging services for various applications, including public safety, commercial, and government services. The company serves defense contractors, governments, and telecommunications companies. Comtech Telecommunications Corp. was founded in 1967 and is headquartered in Chandler, Arizona.