BS 5839-8:1998 provides recommendations for the planning, design, installation and servicing of voice alarm systems associated with fire detection and alarm systems in and around buildings.
Voice alarm systems covered by this code of practice are those which automatically transmit messages in response to signals from their associated fire detection and alarm systems. Systems that necessitate manual intervention are outside the scope of this code of practice, although voice alarm systems normally include a facility for transmission of live voice messages as well as automatically generated messages.