The listed company of QSC AG with its head office in Cologne is a leading medium-sized service provider in the telecommunications sector with its own Next Generation Network (NGN), providing primarily SMEs with the entire range of high-quality broadband services. Besides providing intelligent network-related voice and data services, QSC implements complete enterprise networks (VPNs),
including managed services, and provides high-performance DSL, Ethernet and microwave transmission connections of up to 800 Mbit/s. In addition, the company supplies national and international carriers, ISP and strong marketing partners in the residential client market with the upstream products required.