Question: In the context of Lawful Interception (LI) for Supplementary Services in a telecom network, what is the primary purpose of the IRI-REPORT record when a user initiates control procedures (Activation/Deactivation/Interrogation)?
Option 1: To encrypt the communication between the User Equipment (UE) and the Network for secure transmission.
Option 2: To notify the Law Enforcement Agency (LEA) of changes in the target's subscription status.
Option 3: To indicate to the requesting entity whether the user's request for Supplementary Service control has been processed successfully or not.
Option 4: To initiate a handover procedure for seamless service continuity during interception.
Explanation: The IRI-REPORT record is specifically designed to provide feedback on the outcome of the user's request regarding Supplementary Services. This ensures transparency and confirmation of the action's success or failure, which is crucial for both the user and the network operator in managing services effectively within the constraints of lawful interception protocols.