Mass notification can be accomplished in many ways. Text messaging, email, sirens, and flashing strobes are all excellent methods of getting peoples’ attention but the key to successful notification is the spoken word. Specific instructions for a particular situation are the best method to insure everyone knows exactly where to go and what to do. GAI-Tronics offers a complete analog system that includes a user-friendly headend and a variety of end devices. We also offer addressable VoIP and WiFi end devices that will broadcast a direct or multi-cast VoIP signal.