An apparatus and a method for a terminal device control server. The terminal device control server collecting, storing and providing information (i.e. device intelligence) relating to a plurality of terminal devices in a mobile communication network. A policy based control mechanism can be used in conjunction with one or more authorization lists and the device intelligence to respond to requests from various elements in the network to allow or deny access to the network or to services within the network to specific terminal devices. The device intelligence can alternatively be used to improve the effectiveness of service offerings in the network by providing information associated with a specific terminal device to other elements that adapt their services offerings and interactions to the capabilities of the specific terminal devices.