Qsc AG (Qsc) is a communication company that provides integrated telecommunication and managed services. The company’s services include broadband network connections, managed services, software based telephone systems IP centrex, IP -VPN networks, and direct connections QSC voice network. It offer broadband communication services such as, leased lines in various bandwidths, voice and data services on the basis of its next generation network NGN. The company also provides managed outsourcing services which include the integration of the narrowband voice networks of alternative providers into its next generation networks. Qsc is headquartered in Cologne, Germany.