- Author
- Richardson, L. F.
- Title
- Giant Steps.
- Journal
- NFPA Journal, Vol. 103, No. 5, 69-70, September/October 2009
- Keywords
- NFPA 72 | fire codes | fire alarm systems
- Identifiers
- mass notification; voice intelligibility; signaling for deaf and hard-of-hearing; digital alarm communicator systems