Question: During Explicit Call Transfer (ECT) in a telecom network, what happens to the Lawful Interception (LI) transaction when the target leaves the call after transfer?
Option 1: The LI transaction is paused and resumed upon the target's next call.
Option 2: An IRI-END record is sent, and the LI transaction is terminated.
Option 3: A new LI transaction is initiated for the remaining participants.
Option 4: The LI transaction continues to monitor the original caller.
Explanation: In the context of Explicit Call Transfer (ECT) and Lawful Interception (LI), when the target leaves the call after transfer, the interception process for that specific target concludes. An IRI-END record is sent to signify the end of the interceptable event related to the target's participation, terminating the LI transaction for that target in this call scenario, ensuring proper management and closure of interception activities.