KT Corporation provides telecommunication services. Its services include mobile telecommunications services, telephone services, fixed-line and VoIP telephone services. The Company also provides interconnection services to other telecommunications companies, broadband Internet access services and other Internet-related services. It also offers information technology and network services, including consulting, designing, building, and maintaining of systems and communication networks. KT Corporation, formerly known as Korea Telecom Corp., is headquartered in Sungnam, South Korea.