Question: In Lawful Interception (LI) for 3G networks, what type of user action is typically reported as part of non-call related supplementary service information?
Option 1: Subscriber Controlled Input (SCI)
Option 2: Network Initiated Unstructured Supplementary Service Data (USSD)
Option 3: Mobile Originated Short Message Service (MO-SMS)
Option 4: Location Services (LCS) Requests
Explanation: In the context of Lawful Interception in 3G networks, Subscriber Controlled Input (SCI) is a type of user action that falls under non-call related supplementary services. SCI involves inputs or actions initiated by the subscriber that are not directly related to voice calls, making it a relevant piece of information for interception purposes as per the principles guiding the transmission of such service information in LI scenarios.