Question: In a Circuit Switched (CS) domain, what is a primary purpose of distributing tariff information to network elements for Advice of Charge purposes?
Option 1: To enhance User Equipment (UE) security features
Option 2: To optimize network element software updates
Option 3: To facilitate real-time billing for data services only
Option 4: To support the introduction of new services or modifications to existing service tariffs
Explanation: In a CS domain, distributing tariff information to network elements is crucial for Advice of Charge purposes, particularly when new services are introduced or existing tariffs are modified. This ensures that subscribers receive accurate charging information, reflecting the current pricing structure for the services they utilize.