Skip to main content
Bosch Security and Safety Systems I North America
Public address and voice alarm


IP-connected and fully-featured

Receptionist speaking into a call station at the reception desk

PRAESENSA sets a new industry benchmark for mid-to-large applications. It is an advanced and cost-efficient IP-connected PA and voice evacuation system, certified for UL 864/ UL2572 certified fire evacuation/ mass notification system (MNS), using smart-power concept and integrated redundancies, making it perfect for both centralized and decentralized topologies.

#AlwaysAhead: How does an IP-based PA and voice evacuation system achieve more?

What can it offer consultants, system integrators, installers, facility managers, building owners and end-users? How can you take full advantage of IP-related benefits?


Basic system components

Explore the full potential of our PRAESENSA paging and mass notification system components. Designed with IP-networking at its core, each component contributes to ease-of-installation, ease-of-use and cost-efficiency, bringing peace of mind to a new level. Discover the entire range of PRAESENSA products and components in our extensive product catalog.

Ideal for mid-to-large application areas

As a pioneer in the public address industry, Bosch understands that operator comfort and peace of mind is paramount. You need a paging and mass notification system that you understand, that understands how you work and what you need to do your job. That’s why Bosch created the IP-based PRAESENSA public address and voice evacuation system with an interface that keeps you in charge and helps you at every step. First, a user-friendly design lets you know what’s going on, audio or voice messaging, in every area. Need to adjust the volume and music selection per area? No problem. And when you need to make an announcement, the system will guide you through, and let you know when the voice announcement has been made successfully. Other users, such as emergency and safety personnel, have their own access to the PA and voice evacuation system, which will adjust to meet their requirements, giving you one less thing to worry about.

The road to PRAESENSA…

Consultants, system integrators, installers, venue owners and end-users can all benefit from the IP-based PRAESENSA paging and mass notification system. Easy to specify, install, adapt and use, it bridges the gap between need and functionality. The needs of our customers have been at the heart of the creation of PRAESENSA. Two of our partners can testify about this. Hear also about this journey direct from our development team.



Learn more about the PRAESENSA system design, intuitive interface and practice application design. This will help make your work more efficient, your paging projects more profitable and your support network bigger.

Create an account on the Bosch Communication Systems Academy and register for the training that suits you best. Qualify yourself for PRAESENSA and tell your customers all about it.

Downloads and other resources

download icon

PRAESENSA overview


download icon

System integration of emergency and safety systems

Application note


Find your dealer

Use the dealer search below to find your local partner.


Dealer search >


Together with the support of our consultant-dedicated application team, we are ready to make your project a priority.


Go to consultant resources >

Product catalog

Find the right products including technical data and software downloads in our online product catalog.


Go to the online product catalog >


Become a portfolio expert by joining regular trainings, checking out our offering of literature, videos and tools, or by attending one of our webinars.


Go to our Learning overview page >


Technical literature and application examples are available for reference. Trainings are carried out by our experts. We have long service periods for repair and spare parts.


Learn more about our technical support >

Stay informed

Please sign up for our newsletters to stay informed about our products and services.


Sign up for our newsletter >

Share this on: