Procedures for registration of communication terminals at base station devices by using virtual appliances

A method comprising: Receiving, at a base station, a request to register a communication terminal, wherein: (i) the request is received at time t (ii) at time t (iii) t Selection of a virtual device to the base station by an archive virtual device is searched, wherein: (I) the archive virtual device stores multiple virtual devices, (Ii) each virtual machine software for providing a service, and (Iii) is selected, the virtual device based on the compatibility of its base station software to the communication terminal; and as a response to the request, starting the virtual device to the base station at the time t (I) the software is configured such that it as an identifier for a communication terminal that is allowed to access one or more of the services provided by the software recognizes the identifier, and (ii) t