- Author
- Moore, W. D.
- Title
- Listen Up.
- Journal
- NFPA Journal, Vol. 103, No. 4, 32-32, July/August 2009
- Keywords
- communication networks | NFPA 72F | NFPA 72 | fire alarm systems | emergencies | design criteria
- Identifiers
- emergency communications systems (ECS) both inside and outside buildings; Emergency Communications Audio Intelligibility Applications Guide