Question: In a RANflex configuration with group call redundancy, after a Group Call Register (GCR) restarts following an outage, how does it handle transient data when processing a GCR interrogation for a record marked as 'transient data not reliable'?
Option 1: The GCR assumes the call is ongoing and processes the interrogation without retrieving additional data.
Option 2: The GCR retrieves transient data from another GCR within the redundancy pool using a SYNC_GCR message with a request indication, updates the record, and then processes the interrogation.
Option 3: The GCR sends a negative response to the interrogation request and keeps the 'transient data not reliable' mark without attempting data retrieval.
Option 4: The GCR only resets the 'transient data not reliable' mark without retrieving new data before proceeding with the interrogation.
Explanation: When a GCR restarts after an outage, its transient data may be unreliable. To ensure accuracy when processing a GCR interrogation for a record marked as such, the GCR proactively retrieves the most current transient data from another GCR in the redundancy pool. This approach ensures that the processed interrogation is based on reliable, up-to-date information, which is crucial for managing group calls effectively and avoiding potential disruptions or errors.