Patent ID: 7835352
Filing Date: 2010-11-16
Classification: H04L

Abstract:
1. A method for processing Session Initiation Protocol (SIP) requests in an IP Multimedia Subsystem (IMS) network, comprising: an Application Server (AS) in the IMS network receiving a first SIP request forwarded by a Serving Call Session Control Function (S-CSCF) entity and generating a second SIP request according to the first SIP request; the AS deciding whether it is needed to associate the second SIP request with the first SIP request in the S-CSCF entity according to an execution result of a selected service logic, if it is needed to associate the two SIP requests, removing an Uniform Resource Identifier (URI) of the AS from a Route header of the first SIP request and taking the rest of the Route header as a Route header of the second SIP request; otherwise, the AS constructing the Route header of the second SIP request in an originating User Agent (UA) behavior mode; the AS sending the second SIP request to the S-CSCF entity; and wherein the AS deciding whether to associate the first SIP request with the second SIP request according to the execution result of the selected service logic further comprises: deciding whether to associate the first SIP request with the second SIP request by comparing user related information that is generated by the service logic for the second SIP request and user related information of the first SIP request.