Wireless Security Gate Intercom
A wireless security gate intercom provides long range, 2-way voice communication to a two-way radio or wireless intercom. They can be used to open gates or doors from remote locations, which means monitoring personnel do not have to be confined to a desk. These intercoms are also called "wireless call boxes" and are essentially long-range two-way radios in a water and vandal resistant case with some added features. There are no air-time or telephone service fees with these systems.