Question: In the context of Lawful Interception in Telecommunication Networks, how is SMS over IP Multimedia Subsystem (IMS) intercepted, particularly for Non-Local ID cases?
Option 1: Using a dedicated SMS interception interface separate from IMS architecture.
Option 2: Through the Short Message Service Centre (SMS-C) directly, bypassing IMS infrastructure.
Option 3: By intercepting at the User Equipment (UE) level, requiring specialized client software.
Option 4: In accordance with normal IMS interception procedures, as outlined for general IMS traffic.
Explanation: This is correct because, according to the principles of lawful interception in telecom networks, SMS over IMS is treated similarly to other IMS traffic for interception purposes. This approach ensures consistency and simplicity in implementing lawful interception across different service types within the IMS framework. It leverages existing IMS interception mechanisms, making it efficient for both operators and law enforcement agencies.