Question: In the context of Lawful Interception (LI) and handover interface security, what happens to the Control Channel (CC) links when an active call is put on hold in a scenario where reuse of CC links is enabled?
Option 1: The CC links are immediately disconnected to free up resources for new calls.
Option 2: The CC links remain connected but may be reused if the target sets up a new call or retrieves a previously held one.
Option 3: The CC links are automatically switched to a standby mode, requiring re-establishment for any subsequent call activity.
Option 4: The decision on what to do with the CC links is left to the discretion of the network operator's policy.
Explanation: This option correctly reflects the behavior when an active call is put on hold. The CC links are not immediately disconnected, allowing for their potential reuse if the target initiates a new call or retrieves a held one, optimizing resource utilization while maintaining lawful interception capabilities.