Two-Way Radio Systems

Two-Way Radio Systems

Chatterbox Alarm Location Monitoring (CALM)

Chatterbox is a market leading supplier of bespoke integrated two-way radio systems.


Today’s two-way radio solutions go far beyond simple audio communications. Chatterbox Alarm Location Monitoring (CALM and CALM+) two-way radio systems interface with other voice and data systems, providing a raft of sophisticated features designed to protect the health and safety of your employees and members of the public and improve communication.

Although they are accessible from anywhere via the internet, CALM and CALM+ systems are stand-alone not web-based. As they reside locally on your PC or network they are less vulnerable than web based systems.

As an authorised supplier for all the major industry manufacturers we can select from a wide range of products to engineer the best system to suit your exact requirements.


CALM Two-Way Radio Systems 

CALM two-way radio systems offer the following features:

CALM+ Two-Way Radio Systems 

In addition to CALM’s standard features CALM+ systems offer:


Call 020 7183 4391 for a no obligation system evaluation

View case studies for CALM two-way radio systems: