Question: In a network supporting Restricted Local Operator Services (RLOS), what happens when the PCRF binds an IMS session to an IP-CAN established to an RLOS APN, but the service-URN AVP does not include an RLOS value?
Option 1: The session is prioritized as an emergency service.
Option 2: A new RLOS registration is triggered for the user.
Option 3: The UNAUTHORIZED_NON_RLOS_SESSION session is returned.
Option 4: The call back functionality is initiated to resolve the issue.
Explanation: According to the RLOS feature specifications, when the Policy and Charging Rules Function (PCRF) binds an IP Multimedia Subsystem (IMS) session to an Internet Protocol Connectivity Access Network (IP-CAN) established for an RLOS Access Point Name (APN), but the service-URN Attribute Value Pair (AVP) lacks an RLOS value, the system responds by returning an **UNAUTHORIZED_NON_RLOS_SESSION**. This is a specific handling mechanism to manage non-RLOS sessions in an RLOS context, ensuring proper session management and authorization checks are maintained within the network.