In his presentation Ray will provide the audience with unique behind-the-scenes insights into the system that is the heart and soul of Western Australia’s mission-critical communications. How to manage constantly increasing triple zero (000) calls across the largest landmass covered by a single ambulance service? The St John Ambulance State Operations Centre is one of the most modern in the country and comprises the latest technologies to ensure that every call received is answered and tasked as efficiently as possible. The organisation’s radio system consists of a UHF and VHF network with voice and data also utilising a Radio over Internet Protocol (RoIP) that connects many of its country locations. System redundancy as well as DFSI interfacing via the Digital Radio Gateways were just some of challenges the organisation was facing.