TECHNIQUE FOR SERVICE DOMAIN SELECTION

摘要

A technique for performing a service domain selection in a communications network having a default service domain and at least one alternative service domain is described. According to this technique, a switching to the alternative service domain involves the invocation of a supplementary service that is provided as a supplement to a basic service. A method implementation of this technique comprises steps of identifying a basic service type associated with a service request; determining if for at least one of an originating side and a terminating side of the service request the identified basic service type is linked with a subscription to the supplementary service of service domain switching; and invocating the supplementary service of service domain switching if a linking can be determined.