Question: In 3GPP Lawful Interception architecture, what is the primary purpose of including 'Correlation Information' when delivering Communication Content (CC) via an IP-based delivery interface?
Option 1: To decode RTP streams for intercepted media playback
Option 2: To indicate the direction of the media stream (transmit or receive)
Option 3: To correlate the CC with the corresponding IRI (Interception Related Information) messages
Option 4: To determine the method used by the MF/DF for constructing RTP payloads
Explanation: Correlation information is crucial for linking the intercepted Communication Content (CC) with the relevant Interception Related Information (IRI) messages. This ensures that Law Enforcement Agencies (LEAs) can properly associate the content of communications with the context and metadata provided in IRI messages, facilitating effective investigation and analysis.