CCTN manages and maintains a diverse telecommunications portfolio that includes fiber-optic transport systems, Dense Wavelength Division Multiplexing (DWDM) networks, MPLS and IP communications networks, microwave radio systems, carrier services, and supporting DC power infrastructure. The Corporate Communications Transmission Network (CCTN) is the clients mission-critical telecommunications organization responsible for planning, engineering, deploying, operating, and maintaining the communications infrastructure that supports electric, gas, steam, and corporate operations throughout service territories.