Question: What is the primary function of the Charging-Rule-Name AVP in the context of Policy and Charging Control (PCC)?
Option 1: To specify the billing cycle for a particular IP CAN session.
Option 2: To uniquely identify a PCC rule within an IP CAN session or at the PCEF level.
Option 3: To define the QoS parameters for a given PCC rule.
Option 4: To indicate the priority of a PCC rule among multiple rules.
Explanation: The Charging-Rule-Name AVP is crucial for identifying PCC rules, ensuring each rule can be distinctly recognized either within an IP CAN session (for PCRF-provided rules) or at the PCEF itself (for pre-defined rules). This unique identification is essential for properly applying and managing PCC rules in telecom networks.