Specifically designed to make speech unintelligible and conversation private, Lencore’s i.Net sound masking system is so powerful at creating comfortable speech privacy that, according to building code, it must be shut down in the event of an emergency to clear the way for an intelligible, clear, voice announcement to reach the intended recipients. And that’s exactly what i.Net is designed to do — as it is the only sound masking system in the world to meet the UL 2572 standard to work with a fire alarm control unit. i.Net – the Response Able™ Sound Masking System.