What distinguishes modern mass notification from early auditory beacons?

Answer

The ability to facilitate two-way communication and collect status data from recipients.

Modern notification platforms have evolved from simple, one-way signaling systems—like sirens designed to provoke immediate panic or shelter-seeking—into interactive data exchange systems. Contemporary technology allows organizations to not only broadcast information but also to receive confirmation of receipt, conduct status polls, and ask recipients for detailed responses, thereby transforming emergency communication into a dynamic, two-way process.

What distinguishes modern mass notification from early auditory beacons?
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