Question: What happens to the presentation of a calling party's line identity when a call, which has undergone Voice Call Continuity (VCC), has the Calling Line Identity Restriction (CLIR) Supplementary Service applied?
Option 1: The called user receives the calling party's line identity after VCC.
Option 2: The indication of 'identity not available due to restriction' remains unchanged for the called user.
Option 3: The CLIR Supplementary Service is automatically lifted after a call undergoes VCC.
Option 4: The calling party's line identity is presented to the called user with a temporary identifier.
Explanation: According to telecom principles for supplementary services, when a call has CLIR applied, the recipient receives an indication that the caller's identity is not available due to restriction. VCC enables uninterrupted calls across different access networks but does not alter the application of supplementary services like CLIR. Therefore, the presentation of the calling party's line identity restriction remains unchanged for the duration of the call, even after undergoing VCC, ensuring consistent handling of caller identity and respecting the privacy settings chosen by the caller.