Question: In an IP Multimedia Subsystem (IMS), how is CS (Circuit Switched) Data typically utilized for communication between two terminals?
Option 1: Through a packet-switched data stream, managed directly by the User Equipment (UE)
Option 2: Analogously to a voice call, with connection setup controlled by the IMS Core and transparent data transport using existing codecs
Option 3: Via a dedicated signaling channel, separate from both voice and other data services, requiring unique codec configurations
Option 4: Exclusively through an external, non-IMS network infrastructure for data transmission, bypassing the IMS Core's control
Explanation: This is correct because CS Data in IMS environments mimics the setup and control flow of traditional voice calls but for data connections. The IMS Core manages the connection setup, ensuring compatibility and efficient use of network resources, while the actual data transmission can utilize existing, transparent codecs, similar to how voice calls are handled in these networks.