Question: In a UICC containing both USIM and ISIM applications, where is the IMS Configuration Data object utilized from if both applications have the EFIMSConfigData file present?
Option 1: The EFIMSConfigData file in the USIM application is used as the primary source.
Option 2: The EFIMSConfigData file in the ISIM application takes precedence and is utilized.
Option 3: Both files are merged to create a comprehensive IMS configuration data object.
Option 4: The presence of both leads to an error, requiring manual configuration.
Explanation: According to telecom standards for UICC configurations, when both USIM and ISIM applications have the EFIMSConfigData file (containing IMS Configuration Data), the file in the ISIM application is used. This precedence ensures consistency in managing IP Multimedia Services, aligning with how ISIM is specifically designed for such services. The presence of this file in both, especially with an ISIM present, is considered an incorrect UICC configuration, highlighting the importance of proper setup to avoid conflicts.