Apparatus for accessing a service over a communications network comprises an interface for connection to a communication line of the network, a memory for storing a unique serial number and configuration data, and a process of configuring the interface to communicate with a remote configuration system...http://www.google.com.au/patents/US6938089?utm_source=gb-gplus-sharePatent US6938089 - Apparatus and method for controlling access to a service over a communications system
