Question: In a Lawful Interception (LI) scenario for PTC-based VoIP, what is the scope of Communication Content (CC) reporting by the Content Service Provider (CSP) when authorized?
Option 1: All talk bursts in the target's PTC session, across various types of PTC sessions (e.g., Pre-arranged groups, Chat groups, One-to-One calls).
Option 2: Only for incoming calls to the PTC target's MS, facilities, or service, excluding outgoing and pre-arranged group calls.
Option 3: Limited to SIP/IP signalling metadata within the CSP core, without intercepting actual talk burst content between the PTC LI target and associates.
Option 4: Just for One-to-One PTC sessions originated by the PTC target's MS, excluding all types of group calls and incoming calls.
Explanation: According to the principles of Lawful Interception for PTC-based VoIP, when authorized, the CSP is required to intercept and report all communication content (talk bursts) in various types of PTC sessions (including but not limited to Pre-arranged groups, Chat groups, One-to-One calls) that are either originated by or terminated at the target's device/service. This ensures comprehensive coverage of the target's communications for lawful purposes.