If the Internet Goes Out, Does My Wireless Security System Still Work?

This depends on the type of wireless home security alarm system you have installed in your home. Typically, homeowners have one of four choices when it comes to connectivity to the alarm monitoring company:

  • Traditional telephone lines
  • Cellular Radio
  • Voice over Internet Protocol (VoIP)
  • Internet
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Strictly speaking, if your home security system communicates with a monitoring center via the Internet, your alarm system would no longer be connected to them, should you lose Internet connectivity for any reason.

These reasons include network outages at your ISP, a power outage, equipment failure, and deliberate outages, like prank-playing neighbor kids or even a burglar cutting the wire outside your home.

Wireless connections using VoIP technology are vulnerable to Internet outages as they draw their power from the home phone line. Some alarm companies use technology designed to maintain connectivity with the monitoring center in the event of an Internet outages when using VoIP.

Cellular radio offers the most reliability for connecting your alarm system with a monitoring company and remain unaffected if the Internet goes offline at your house. Like a cellular phone, these types of home security systems use specific radio frequencies to maintain communication with cellular transmitters in outage situations.

Check out our best home security systems page for assistance in discovering which home security provider best suits your needs.

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Info current as of 04/12/21. Offers and availability may vary by location and are subject to change.
*$0 due up-front with consumer financing.
†No-contract options available with outright equipment purchase.
‡Landline monitoring only. Some restrictions apply. (Full disclaimer)
**With $99 installation charge and new monitoring agreement. Early termination fee applies. See full disclaimer for full offer details, terms, and conditions.

Celeste Tholen
Written by
Celeste Tholen
Celeste has dedicated her decade-long career to reporting and reviews that help people make well-informed decisions. She oversees editorial strategy and production for SafeWise, with a goal to help people find the information they need to make their homes and lives safer. Prior to SafeWise, she worked as an editor and reporter for KSL and Deseret News. She continues to report on local news as a volunteer with the community paper. For the last six years, she’s led a Girl Scout troop, teaching girls about safety and preparing for whatever life throws their way.

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