Question: Which of the following is NOT a primary functionality of the Bearer Binding and Event Reporting Function (BBERF) in a telecom network?
Option 1: Downlink Packet Scheduling
Option 2: Uplink Bearer Binding Verification
Option 3: Mobility Management for Inter-RAT Handovers
Option 4: Sending IP-CAN-specific parameters to the Policy and Charging Rules Function (PCRF)
Explanation: The correct answer is Option 3 because Mobility Management for Inter-RAT (Radio Access Technology) Handovers is not listed among the primary functionalities of the BBERF, which are focused on bearer management and event reporting. In contrast, Uplink Bearer Binding Verification and Sending IP-CAN-specific parameters to the PCRF are explicitly mentioned as BBERF functionalities. Downlink Packet Scheduling, while related to bearer management, is not explicitly listed but is closer in context than Inter-RAT Handovers, making Option 3 the most clearly incorrect function for BBERF.