We highly recommend having an internet connection – or at the very least, a landline – to properly set up a security system for a home/business. The best security alarm systems use data for monitoring purposes – which is received from your system via the internet. Additionally, today’s systems are designed to send alerts to your smartphone if an alarm goes off. While these features aren’t always required, you won’t be getting the full benefit of the system by choosing not to receive the alerts. Even without an internet connection, security monitoring systems will call your home to check on you if an alarm goes off.​