Patent ID: 8185104

Claim:
A home subscriber server (HSS) for storing and controlling subscriber data for subscribers of a home network that includes a multimedia infrastructure operating in accordance with a Third Generation Partnership Project (3GPP) Internet Protocol (IP) Multimedia subsystem, the home subscriber server comprising: means for receiving from an access network, information about the access location of a subscriber, the received information including an identifier of an access entity in the access network through which the subscriber has requested access; a user profile for the subscriber, the user profile including a number of filtering criteria that are selectively applied to subscriber messages depending on a type of call; first processing means for deriving a country code (CC) from the received identifier of the access entity; second processing means for determining in accordance with subscriber preferences, a selected country code usable for number internationalization and to be included by the HSS in the information about the access location of the subscriber, the selected country code being either the country code derived from the received identifier of the access entity or the country code of the home network; and means for submitting the information about the access location of the subscriber, which includes the selected country code as determined, along with the user profile towards a serving call session control function (S-CSCF) entity assigned to the subscriber in the home network.