| 摘要 |
<p>A method of routing signalling plane traffic through or out of an IP Multimedia Subsystem, IMS, network. The method comprises maintaining within user profile data stored in a subscriber database of the IMS network, routing information defining signalling plane routing profiles for a user associated with the user profile data. Said routing information is transferred from the subscriber database to a Call Session Control Function, CSCF, of the IMS network at or following registration of said user to the IMS network. The method then comprises handling a Session Initiation Protocol, SIP, request for said user at the CSCF including adding said routing information into the request and forwarding the SIP request to a next hop node, and, at said next hop node or at a further downstream node, making a routing decision for the SIP request or for related signalling on the basis of the routing information contained within the SIP request.</p> |
