Question: What type of information does the EFCCCH (Current Control Channel) file primarily contain, according to 3GPP specifications for the SIM-ME interface?
Option 1: Latest Location Area Code (LAC) updates
Option 2: Current Control Channel details related to the Last Paging Control Channel used by an AMPS phone
Option 3: Subscriber's preferred network list for roaming
Option 4: Temporary Mobile Subscriber Identity (TMSI) allocations
Explanation: The EFCCCH file primarily contains details about the control channel used during the last paging operation for an AMPS phone, crucial for network handover and communication management in telecom networks.