Question: When an MME detects EPS signaling from a UE with the NEAF set, leading to a procedure towards the VLR, what action(s) does the MME take?
Option 1: Send an SGsAP-UE-ACTIVITY-INDICATION message and reset the NEAF.
Option 2: Follow the procedure towards the VLR but do not reset the NEAF.
Option 3: Follow the procedure towards the VLR and reset the NEAF.
Option 4: Ignore the signaling since NEAF is set.
Explanation: According to the specifications, if the MME detects EPS signaling that leads to a procedure towards the VLR with the Network Element Availability Flag (NEAF) set, it must follow through with that procedure and subsequently reset the NEAF. This ensures seamless communication while also updating the availability status of the network element.