LI/DR Service Continuity in Case of Number Portability

摘要

The present invention relates to methods and arrangements to perform monitoring-continuity in case of number portability in a telecommunication The method comprises a step wherein a monitored user (B) requires number portability from an operator of a donor network (DNW) to an operator of a recipient network (RNW). The method further comprises the receiving of a number portability event—temporary address (NPE1) to an agency controlled receiving entity (LEMF, ADRS), which event (NPE1) to an agency controlled receiving (NPE1) comprises information related to the user's ported identity and the user's new identity.