Navigating Generations of Changes in Alarm Communications
When I first entered the security industry in 1973, alarm communications were performed by Direct Wire, McCulloh and some high security applications using voice-grade telephone lines configured in “open window” and later “closed window” bridges.
The digital communicator made a shaky entrance somewhere around 1975. Many old salts spurned it as un-supervised, as if it should be burned at the stake. But it caught on and somewhat revolutionized the security industry.