An emergency communication system is defined by Wikipedia as a system that has the purpose of supporting one-way and two-way communications during an emergency, generally over multiple devices such as signal lighting, streaming video, text messaging, or live communications. Emergency notification systems are generally designed to deliver one-direction notifications, whereas emergency communication systems are capable of initiating and receiving information between multiple parties.
This is accomplished with various input devices, sensors, and output and communication devices. Information may originate from a variety of locations and sources, and the system will relay that information to one or more target audiences.
