Question: What is a primary function of the Correlation Number in the context of Lawful Interception (LI) for EPS bearers/tunnels?
Option 1: To encrypt sensitive information exchanged between the UE and the network.
Option 2: To manage Quality of Service (QoS) parameters for prioritizing traffic.
Option 3: To correlate different interception records (e.g., CC, IRI, LALS reports) within the same EPS bearer/tunnel.
Option 4: To authenticate user equipment (UE) during the initial network attachment.
Explanation: The Correlation Number plays a crucial role in Lawful Interception by ensuring that various interception records, such as Communication Content (CC), Intercept Related Information (IRI), and Location Alerts for Lawful Surveillance (LALS) reports, can be accurately correlated within the same EPS bearer/tunnel. This facilitates comprehensive and coherent surveillance data analysis, highlighting its significance in maintaining continuity across different types of interception records for a given communication session.