Patent ID: 8489743

Claim:
A method implemented by an administration centre for providing administrative registration in an internet protocol multimedia subsystem, IMS, comprising: obtaining, by a computer of the administration centre, user data of a user to be registered; determining, by the computer, a home subscriber server for the user; and sending, by the computer, an administrative request to the home subscriber server, where the administrative request includes an identifier of the user, where the administrative registration of the user allows the user to use a terminal to receive services from the IMS while the terminal is connected to a network, where the network provides only circuit switched, CS, services, where the terminal is not suited to perform a registration with the IMS, where an operator enters the user data associated with the administrative request, where the registration of the user is provided without the terminal exchanging registration signaling with the IMS, and where the administrative request comprises Feature Tags identifying communication capabilities of the terminal to be registered for the user by the administrative registration.