Question: Where can IMS Service Continuity be executed when utilizing (5G-)SRVCC enhanced with ATCF, considering both non-roaming and roaming scenarios?
Option 1: Only in the home network of the subscriber.
Option 2: Either in the serving network (which could be a visited network if roaming) or in the home network.
Option 3: Exclusively in the serving network, with no dependency on whether the user is roaming or not.
Option 4: This capability is always disabled when (5G-)SRVCC enhanced with ATCF is used.
Explanation: IMS Service Continuity's flexibility, especially when combined with advanced handover techniques like (5G-)SRVCC enhanced with ATCF, allows for its execution in either the network currently serving the user (which may be a visited network during roaming) or the user's home network. This dual capability supports seamless service continuity across different access networks and scenarios, ensuring minimal disruption to multimedia sessions.