The present invention proposes a solution for providing multicast/broadcast service to users roaming between different operational domains. In particular it is proposed to provide means enabling the user to contact a home multicast/broadcast server. Said means might be a request being triggered by the user. Said request includes a network identifier identifying the visited operational domain, which is provided to the multicast/broadcast server. The latter decides on a provision method for providing the at least one multicast/broadcast service to the user in the visited operational domain considering rules for a provision of multicast/broadcast services in the visited operational domain and the request triggered by the user. Further the multicast/broadcast server determines a second parameter set for accessing the at least one multicast/broadcast service in the visited operational domain according to the provision method and informs the user about the second parameter set.