Informing other network nodes of multiple public user identities associated with a common service profile

摘要

A Home Subscriber Server handles IMS subscriptions, each comprising one or more Public User Identities for a subscriber of an IMS network. Each Public User Identity is associated with a Service Profile which can be associated with a plurality of Public User Identities. The Home Subscriber Server comprises means for downloading to other network nodes the Service Profile associated with a Public User Identity registered with a user terminal, and for downloading along with the Service Profile other grouped Public User Identities also associated with the Service Profile and not included in an Implicit Registration Set with the registered Public User Identity.