System and method for managing call continuity in IMS network environment using SIP messaging
作者： Michael Shenfield , Adrian Buckley , Andrew Allen
DOI:
关键词:
摘要: In one embodiment, a scheme is disclosed for managing call continuity in network environment including circuit-switched (CS) and an IP multimedia subsystem (IMS) wherein SIP Invite message having Domain Transfer-URI contained the Request-URI that operable to trigger return of routable number utilized. Responsive from UE device, node provides response (e.g., 380 (Alternative Service) Response) which includes or more radio access technologies alternative domain available device continuing another domain.
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