| 摘要 |
A routing technique for supporting an internet protocol IP Multimedia Subsystem IMS (10) Subscriber Locator Function SLF (18) is provided. It is, in part, based on using a user's identification information, e.g. a user's realm, to facilitate the routing of information. This technique enables the implementation of a distributed subscriber location function SLF (18) in an IMS network (10). The subscriber locator function SLF (18) ultimately allows for accommodation of more users through multiple home subscriber service HSS (16-1,16-2,...,16-n) elements.
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