Method and device for switching from circuit-switching to packet-switching domains

摘要

The method involves detecting an incoming call by a gateway mobile network switching center (28) on the basis initial addressing message, which is verified and subscriber profile homeland server (48) is for call subscriber. An information is requested for forwarding a call to the subscriber in a subscriber profile by a gateway mobile network switching center. The session initial protocol uniform resource identifier (105) of the subscriber profile homeland server is sent to the gateway mobile network switching center as redirecting parameter. Independent claims are also included for the following: (1) a gateway switching center for a mobile network for forwarding a call of a circuit-switching domain to an package-switching internet protocol multimedia subsystem domain (2) a subscriber profile home server for a mobile network with a gateway switching center for a mobile network for forwarding a call of a circuit-switching domain to an package-switching internet protocol multimedia subsystem domain.