Question: In an Offline Charging scenario for IMS, what is the primary purpose of correlating charging records from the SCC AS with those from the MSC Server or IP-CAN?
Option 1: To detect and prevent fraudulent activities across different network domains.
Option 2: To optimize resource allocation for future call or multimedia sessions.
Option 3: To determine the accurate access charge for a call or multimedia session.
Option 4: To prioritize traffic based on charging records analysis.
Explanation: Correlating charging records from different network entities (e.g., SCC AS, MSC Server, IP-CAN) is crucial for accurately calculating the access charge incurred during a call or multimedia session. This process ensures that the billing reflects the actual resources used across various domains, especially in scenarios involving PS to CS transfer, which might span multiple networks (e.g., roaming situations).