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| emergency voice alarm communication system (Some Fire Alarm Systems utilize Emergency Voice Alarm Communication Systems (EVACS) [4] to provide pre-recorded and manual voice messaging to building occupants. Voice Alarm systems are typically used in high-rise buildings, arenas and other large "defend-in-place" occupancies such as Hospitals and Detention facilities where total evacuation is difficult to achieve. ВАД Alexander Demidov) | |||