https://xchange.avixa.org/posts/public-address-vs-voice-alarm-evac-systems-understanding-the-differences
Public Address vs. Voice Alarm (Evac) Systems: Understanding the Differences | AVIXA Xchange
Aug 15, 2025 - Public Address (PA) and Voice Alarm (Evacuation) systems both deliver messages, but they serve distinct purposes. One handles daily communication, while the...
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