Patent ID: 8705442

Claim:
A method of providing mobile station registration and authentication services in a network system, comprising: generating, by the femtocell system, a registration identifier of the mobile station from at least one authentication parameter; receiving, by a convergence server located in a first core network, a session initiation protocol registration request for a mobile station transmitted to the first core network; receiving, by the convergence server from the femtocell and in a separate message from the session initiation protocol registration request, authentication parameters of the mobile station, the authentication parameters comprising the registration identifier; performing, by the convergence server, authentication and registration procedures with a radio access core network on behalf of the mobile station; emulating, by the convergence server, a Mobile Switching Center; and authenticating, by the convergence server, the mobile station with at least one of a Home Location Register and an authentication center located in the radio access core network.