The Department shall: coordinate the development, management, and operation of telecommunication equipment, systems, and services by State government; acquire and manage common user telecommunication equipment, systems, or services and charge units of State government for their proportionate share of the costs of installation, maintenance, and operation of the common user telecommunication equipment, systems, or services; promote compatibility of telecommunication systems by developing policies, procedures, and standards for the acquisition and use of telecommunication equipment, systems, and services by units of State government; coordinate State government telecommunication systems and services by reviewing requests by units of State government for telecommunication equipment, systems, or services; advise units of State government about planning, acquisition, and operation of telecommunication equipment, systems, or services; and provide radio frequency coordination for State and local governments in accordance with regulations of the Federal Communications Commission. The Department may make arrangement for a user other than a unit of State government to have access to and use of State telecommunication equipment, systems, and services and shall charge the user any appropriate amount to cover the cost of installation, maintenance, and operation of the telecommunication equipment, system, or service provided.