Lumen Technologies has won a $223 million contract from the U.S. Defense Information Systems Agency to provide secure, mission-critical communications services to the U.S. Department of Defense. Lumen will supply the agency with hybrid-cloud voice and audio-conferencing services to support the Department of Defense’s mission both domestically and overseas. The company is serving as a trusted provider of secure communications services and will provide the services through its fiber network. The contract has a base performance period of one year with options to extend. Tyto Government Solutions is a subcontractor on the project.