Question: What is the expected outcome after a terminal reads record 1 of EFSDN (Service Dialing Number) as per USIM application test specification?
Option 1: The terminal shall establish a call to a number with a maximum length of 20 digits, as specified in the read record.
Option 2: The terminal will attempt to send an SMS to the number stored in EFSDN record 1.
Option 3: The terminal shall only update its internal phonebook with the number from EFSDN record 1 without initiating a call.
Option 4: The terminal will ignore the content of EFSDN record 1 and wait for further user input.
Explanation: According to USIM application testing, after reading record 1 of EFSDN, a call is established to a specific number, implying the terminal uses the dialing number from the read record to initiate a voice call, demonstrating its ability to correctly interpret and act upon stored service dialing numbers.