Question: What is the primary function of the Paging-ETWS-Indicator parameter in cellular networks?
Option 1: To initiate a location update procedure for User Equipment (UE) in idle mode.
Option 2: To indicate the availability of a software update for UE devices on the network.
Option 3: To trigger the transmission of regular Cell Broadcast Service (CBS) messages to all subscribers.
Option 4: To signal User Equipment (UE) to prepare for receiving emergency information via CBS messages or ETWS alerts.
Explanation: The Paging-ETWS-Indicator parameter's primary function is to alert User Equipment (UE) to anticipate incoming emergency broadcasts, facilitating the dissemination of emergency information across network types.