Profile: Cameo Systems Ltd. is a designer and manufacturer of voice alarm, fire telephone and disabled refuge call systems. We offer two voice alarm solutions, PYROVOX for small to medium installations and PRISM for larger installations. Our PRISM voice alarm equipment consists of fully monitored MOSFET power amplifiers, power supplies, battery chargers, 3U battery standby chassis and standard control frames. In addition, the PRISM system may be interfaced to a multi-zoned fire control panel, either directly or via a custom built mimic, permitting both automatic and manual control of system status.