This Switch is a Non-Momentary rocker style toggle switch. It physically connects or disconnects the transmit wires on the connected handset.
Most high-security environments require a momentary switch (that disconnects by default when you release it). This is a non-momentary toggle switch that stays whichever way you leave it.
Connects in-line between the phone and the handset.
We make Push-To-Talk and Push-To-Mute handsets (with the button built in to the handset) for thousands of phone models. Most people prefer having the button built into the handset, but if we can't make one for your phone, this is a viable alternative.