Question: In a scenario where the Gateway Control Server Application Server (GCS AS) resides within the intercepting operator's network for Lawful Interception (LI), what key distinction characterizes its utilization compared to a conferencing solution?
Option 1: The GCS AS handles both originating and terminating sides of the interception.
Option 2: The conferencing solution requires an additional, separate Law Enforcement Agency (LEA) interface.
Option 3: The GCS AS in this setup necessitates a direct User Equipment (UE) connection for LI.
Option 4: A single functional entity (the GCS AS) is used for Group Call Server for Emergency (GCSE), unlike the two entities used in conferencing.
Explanation: This correct answer highlights the primary technical distinction when a GCS AS is integrated within the intercepting operator's network for LI purposes. By utilizing a single functional entity (the GCS AS) for GCSE, as opposed to the dual-entity approach seen in conferencing solutions, the architecture streamlines the interception process while maintaining operational efficiency.