Question: What information is mandatorily passed, in addition to intercepted media packets, from the CC Intercept Function to the Delivery Function 3 over the X3-Interface for lawful interception?
Option 1: Target identity, Correlation identifier, and Direction
Option 2: SDP information, Time stamp, and Target identity
Option 3: Target identity and Correlation identifier
Option 4: All of the above (Target identity, Correlation identifier, SDP information, Time stamp, and Direction)
Explanation: According to lawful interception architecture, for the delivery of intercepted media packets, the CC Intercept Function must provide essential identifiers to the Delivery Function 3. While options like SDP information, Time stamp, and Direction are mentioned as part of the possible payload, they are designated as 'optional'. In contrast, Target identity and Correlation identifier are fundamental for accurately attributing the intercepted media packets to the correct subject and managing multiple intercepts, respectively, making them mandatory for effective lawful interception.