Is Your Alarm System Compatible with the PSTN Switch-Off?

Why this topic matters & Core context

PSTN (Public Switched Telephone Network) systems are currently being decommissioned across the UK as telecommunications providers migrate to an all-IP digital infrastructure. Many legacy burglar alarms rely on this aging copper infrastructure to transmit emergency signals to monitoring stations, creating a critical vulnerability for thousands of homes and businesses.

To ensure your security remains robust, you must audit your current communicator setup and verify if it uses a standard analogue dialler. If your alarm system relies on a physical phone line to 'call' a monitoring centre, you need to contact your installation professional to discuss a digital migration strategy.

Identifying your connection type

Analogue Communicators are the primary devices that will be rendered obsolete by the digital transition. These devices expect a steady voltage from a physical copper line, which IP-based digital phone services—often provided via your router—cannot reliably deliver, causing signaling failures.

You should inspect your main control panel's signaling module to see if it lists support for IP or 4G backup protocols. If you are unsure, check your contract or recent maintenance logs, as modern dual-path systems should be documented to indicate compliance with updated British Standards.

Best practice & transition pathways

Dual-path signaling represents the gold standard for security compliance, providing both an IP connection and a 4G/LTE mobile path to ensure continuous monitoring. By utilizing two distinct routes to the monitoring centre, you mitigate the risks associated with local power outages or broadband signal failure.

Planning for this transition involves assessing your current network infrastructure to ensure it is robust enough to handle high-availability alarm traffic. As a specialist, I recommend migrating to an insurance-approved, web-based platform that allows for remote system management and real-time status alerts via mobile app.

Video Walkthrough

Is Your Alarm System Compatible with the PSTN Switch-Off? Comparison