Question: What happens to timer T3489 when the network receives an ESM INFORMATION RESPONSE message?
Option 1: The timer is reset.
Option 2: The timer continues running.
Option 3: The timer is stopped and the network enters the state PROCEDURE TRANSACTION INACTIVE.
Option 4: The timer is paused.
Explanation: When the network receives an ESM INFORMATION RESPONSE message, it stops timer T3489 and transitions to the PROCEDURE TRANSACTION INACTIVE state. This indicates that the network has completed its information request procedure and is no longer waiting for a response from the UE (User Equipment).