Specialized voice communications systems are typically installed throughout most healthcare facilities to supplement the PBX telephone system. Even though JCAHO is concerned about "noise pollution" in a healing environment, systems can be designed to reduce overall noise pollution while satisfying the requirement to notify the public of potential hazard. Specialized voice systems consist of public address, also known as overhead paging, staff intercom systems, meeting room sound systems, to name a few. Intercom can custom design a voice communication system to meet the most basic requirements up to a complex, zoned system configuration with automatic volume adjustment based on the ambient noise level at the time of the voice announcement.

Reasons to deploy voice communication systems: