ARRANGEMENTS IN IP MULTIMEDIA SUBSYSTEM (IMS)

摘要

The present invention relates to arrangements adapted for implementation in a Session Initiated Protocol, SIP, provider domain in IP multimedia Subsystem, IMS, for managing SIP user identities wherein each SIP user is identified by a SIP URI. In one aspect of the present invention the arrangement comprises a database adapted to store and publish at least one identifier selected by the user, a content manager, adapted to associate the at least one selected identifier with the SIP URI of the user, and a search engine, adapted to search for a SIP URI in the database via the associated published selected identifier and to act as an interface between different SIP provider domains.