Whether voice or data, mobile or fixed network, individual products or integrated solutions, as a leading provider in the field of business communications, the Enterprise Customers segment supports customers with the planning, implementation and operation of their IT and communications infrastructure, including the provision of cost-efficient solutions and reliable services. Enterprise Customers ranks as one of the leading providers specialising in the integration and operation of complex IT systems. In addition, its core competencies are in the fields of IT outsourcing services, workplace services, SAP services and services for the financial industry.