In order to create a modular solution that will enable the use of a number of headsets and press to talk combinations, Sonic Communications (Int) Ltd have extended the range of Headset Interface Units (HIU).
From basic units that provide PTT and volume control to enhanced units that offer tone generation and emergency functionality.
HIU's also provide a 'plug and Play' solution that allow the interchange of different ancillaries based around the same central unit giving enhanced operational.