Question: When a UE enters or leaves a Presence Reporting Area, what additional information must the PCEF report alongside the CHANGE_OF_UE_PRESENCE_IN_PRESENCE_REPORTING_AREA_REPORT event?
Option 1: Only the new Presence Reporting Area Identifier
Option 2: The entire Supported-Features AVP list
Option 3: The presence reporting area status within the Presence-Reporting-Area-Status AVP and the presence reporting area identifier within Presence-Reporting-Area-Identifier AVP
Option 4: The UE's current IP address and port number
Explanation: According to telecom protocol for handling Presence Reporting Areas, when a User Equipment (UE) enters or leaves such an area, the Policy and Charging Enforcement Function (PCEF) must report the event with specific details: the updated presence reporting area status and its identifier, ensuring the network understands the UE's location for accurate location-aware services and policy enforcement.