Question: What is the primary purpose of including 'Voice Content Direction' in the Communication Content (CC) delivered to the Law Enforcement Monitoring Facility (LEMF) during a Lawful Interception (LI)?
Option 1: To notify the LEMF of changes in the target's location.
Option 2: To enable the LEMF to distinguish between multiple voice media streams and identify the direction of voice content (to/from the target).
Option 3: To provide the LEMF with encryption keys for intercepted communications.
Option 4: To inform the LEMF about the type of handset used by the target.
Explanation: The correct answer is Option 2 because including voice content direction (e.g., From the target, To the target, Combined, Unknown) allows the LEMF to differentiate between multiple voice streams and understand the flow of communication (whether it's incoming or outgoing for the target), which is crucial for effective monitoring. This information also aids in identifying if the voice content is delivered in stereo (separate streams for to/from the target) or mono form, enhancing the LEMF's ability to analyze the intercepted communications accurately.