Yea I think the phone line monitoring is old school and nobody realty uses that anymore. Cellular is the way to go for monitoring.A criminal that sophisticated and prepared will probably have the equipment to get in any free standing safe in less than 30 minutes. I'm in favor of electronic monitoring along with a safe. As a force multiplier. Hard wired security systems can be susceptible to being disabled by cutting power (pulling the breaker on the side of the house) and phone lines?