MELVILLE, N.Y.–(BUSINESS WIRE)–July 22, 2021– Comtech Telecommunications Corp. (NASDAQ: CMTL), a world leader in next-generation 911 emergency systems and secure wireless communications technologies, announced today that Frost & Sullivan has recognized Comtech for registering the most significant year-over-year (“YoY”) market share increase among all NG911 primary contract holders, growing its market share from an estimated 17.3% in 2019 to 26.2% in 2020, as calculated by Frost & Sul