Question: What is a prerequisite for a Mobile Equipment (ME) to send a registration to the IP Multimedia Services (IMS) when utilizing UICC access to IMS, given that Service n°95 is 'available' and no ISIM application is present on the UICC?
Option 1: The ME must perform a reading procedure with EFUICCIARI prior to sending the IMS registration.
Option 2: The ME must first establish a voice call before attempting to register with the IMS.
Option 3: The presence of another application (e.g., USIM) on the UICC is mandatory for IMS registration.
Option 4: The ME can directly send the IMS registration without any prior UICC-related procedures.
Explanation: According to telecom standards, when Service n°95 is available and there's no ISIM application on the UICC, an ME supporting UICC access to IMS must perform a reading procedure with EFUICCIARI before sending a registration to the IMS, ensuring proper setup and authentication for IMS services.