Question: In an Initial Spending Limit Report Request, if the Home Policy and Charging Rules Function (H-PCRF) does not provide a list of policy counter identifiers to the Online Charging System (OCS), what is the expected response from the OCS regarding policy counter status for the subscriber?
Option 1: The OCS returns an error message indicating that policy counter identifiers are mandatory.
Option 2: The OCS returns the policy counter status of all available policy counters for the subscriber, which may include some not relevant for the current policy decision.
Option 3: The OCS requests additional information from the H-PCRF before sending a response.
Option 4: The OCS only returns the status of default policy counters predefined in the system.
Explanation: If the H-PCRF does not provide specific policy counter identifiers, the OCS responds with the status of all available policy counters for that subscriber. This comprehensive response may include policy counters not immediately relevant to the current policy decision, highlighting the need for the H-PCRF to filter or prioritize the received information accordingly.