The GTS Central Europe (GTS) Group is a leading telco operator with its own network and a provider of data center services in the Central and East European region. Their challenge was to build a fully-virtualized data center, whose performance would be delivered to customers as a service. They chose VMware to overcome this challenge. VMware vSphere, VMware vCenter, VMware vShield, VMware vCloud Director, VMware vCloud API and more. The results of deploying VMware were reduction of ownership costs, fully operational, reliable and secure environment, customer IT teams can focus on main priorities, incomparable flexibility, transparent ID of sites, where customer data is stored and tools implemented for the secure separation of individual customers and their data.