Remote office control.

I have recently installed a security system for my office. This one is my first business. I Have just started that. I want to mention I was shocked by the level of today's technology development. I mean, a provider installed the Ajax security system. Then he explained to me how it works and how to control it. So, there are several cameras and sensors which can recognize any human's action. Also, if someone tries to unlock the system - I will get a message. The base has its sim card. It means you do not need the Internet to have such a system.
I know, it sounds like an ad, but I am excited about it! I had imagined something like a signal warning and no more, but I got this!
Do you guys have any of such smart systems at home or in offices?