Patent ID: 8655325

Claim:
A method for invoking a service identified by a Public Service Identity (PSI) in a network, the service being handled by a serving entity and the Public Service Identity (PSI) being held at a Home Subscriber Server, the method comprising the steps of: receiving an invocation of a service identified by a Public Service Identity (PSI) at a routing entity; interrogating the Home Subscriber Server holding the PSI about a serving entity assignable for handling the PSI; forwarding the received invocation of service towards the assignable serving entity; answering the interrogation with an identifier of a Wildcard PSI range which the PSI belongs to; forwarding the identifier of the Wildcard PSI range towards the assignable serving entity; assigning at the Home Subscriber Server a common service profile to the Wildcard PSI range to be applicable for Public Service Identities included in the Wildcard PSI range; and providing the common service profile associated with the Wildcard PSI range to the serving entity, upon receipt of an indication from the serving entity of currently holding the Wildcard PSI range.