Another thing to take note of is whether you have an existing land-based phone line or a more modern Voice Over Internet Protocol phone line
. Whether or not you have one of these phone lines is important because all of the best home security alarm systems will include a feature where the alarm company is notified if your alarm goes off for any reason, and the company will then contact the authorities and inform them that your house is being broken into. Without one of those phone lines, however, then you will need to find a home security alarm system company that provides cellular monitoring services. This service involves connecting your alarm system to your cell phone so that your alarm company can still be informed if something were to set off your home security alarm system.