Question: What is the primary purpose of allowing UICC (Universal Integrated Circuit Card) applications to utilize IMS (IP Multimedia Subsystem) functionalities controlled by the Mobile Equipment (ME)?
Option 1: To enable direct communication between UICC applications and external Application Servers (AS) for enhanced service interaction.
Option 2: To restrict access to sensitive user data stored on the UICC, enhancing security measures.
Option 3: To facilitate firmware updates for UICC applications via IMS protocols.
Option 4: To manage Quality of Service (QoS) parameters for voice calls initiated from UICC banking apps.
Explanation: This is correct because the primary purpose of integrating UICC applications with IMS functionalities is to enable these applications (e.g., identity management, banking apps) to interact with external Application Servers (AS) through the IMS infrastructure. This facilitates a wide range of IP-based services and enhances the overall service experience for users. The ME's control ensures secure and managed access to these functionalities.