The first can be countered with a system that uses mobile as a primary or backup. Some systems, e.g. alarm.com ones send a signal to the monitoring centre when

The first can be countered with a system that uses mobile as a primary or backup. Some systems, e.g. alarm.com ones send a signal to the monitoring centre when an entry door is opened, then if no disarm signal is sent (e.g. the control panel was destroyed), they treat that as an alarm and dispatch police. It's also possible and done by some companies to hide the main control panel somewhere unobtrusive (and mute its speakers) and just place a remote panel by entry points as well as a remote speaker. As for upstairs, that's people being foolish. Myself, I would never accept one that didn't protect upstairs entry points just to save a little bit of money. As they say, a fool and his money^H^H^H^H^Hsecurity are soon parted.