A Public Address system provides the simplest means of broadcasting a short message to all your work force at once. Primarily this would be used for staff location in, for example, a large factory or warehouse were your staff are not always in the same place or by the same telephone. This is quicker than finding the worker in person.

PA Systems are commonly used for:
* Staff Location
* Background Music
* Time Signals (i.e. start of shift, end of class, lunch break, etc)
* Adervtising Spot Announcements
* Routine Messages, i.e. The fire alarms are about to be tested...
* Process Control Messages

The CCS 900 Ultro Discussion System from Bosch brings order and convenience to small and middle-sized gatherings and conferences. This versatile and economical system is both simple to install and extremely straightforward to use. It has all the facilities required for achieving full control of meetings and discussions, without the need for an operator.
Voice Alarm & EVAC

The Bosch Digital Congress Network (DCN) brings the benefits of innovative digital technology to discussion and conference systems. It is the first entirely digital system of its kind, and offers versatility, high audio quality and data transmission while providing complete control over conference proceedings. Whether you build a wired set-up (using DCN Next Generation units), a wireless set-up (using DCN Wireless units) or create a strong combination by mixing both, the DCN system puts you in total control of your conference environment. The documentation within this chapter gives background information on the complete product line.