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Did you know that by January 2027, BT is retiring the PSTN (Public Switched Telephone Network) across the UK? That means any fire alarm or security systems still relying on analogue phone lines will be gradually phased out. If your system hasn’t already been upgraded, now is the time to act.
Many business owners, schools, and care homes may not fully understand what fire alarm monitoring involves. Put simply, it’s when your alarm system sends signals to an Alarm Receiving Centre (ARC) when triggered, rather than relying solely on people in the building to raise the alert. Monitored systems provide 24/7 protection, ensure faster response times, and reduce risk when buildings are empty.
Why the PSTN Switch-Off Is a Big Deal
The switch from analogue to digital/IP-based signalling is happening because the infrastructure for PSTN is being phased out. Many older fire alarm systems still use PSTN lines. Once local exchanges transition, those systems may lose their ability to communicate with the monitoring centres. That could mean missed alerts, non-compliance, issues with insurance or liability.
Benefits of Going Digital for Monitoring
- Faster response times
Digital signalling means almost instant alerts to emergency services. - Remote diagnostics & reliability
Faults or tampering can be spotted off-site, less downtime. - Future-proofing compliance
Systems that rely on PSTN will become obsolete; going digital ensures you stay ahead of regulatory and insurance requirements. - Reduced false alarms & better integration
Modern systems may be able to filter false positives, tie in with other safety systems, giving a fuller safety picture.
What You Need to Do
- Have a qualified fire safety provider (like C&M Fire Alarms) assess your current system to see if it uses analogue or digital signalling.
- If it’s analogue or partially dependent on PSTN, plan an upgrade. C&M Fire Alarms can give you a free no-obligation quotation on your current system.
- Ensure any new setup is compliant with the latest standards.
- Consider setting up regular monitoring contracts and reviews to ensure the system stays functional and is updated as technology changes.
How C&M Fire Alarms is Ahead of the Curve
At C&M Fire Alarms, we’re already helping clients in the South East move into digital-ready fire alarm monitoring. We offer assessments, upgrades, and full installations of systems. With over 50 years in the fire safety business and accredited with BAFE, SafeContractor, and others, we’re dedicated to making sure your building remains protected, compliant, and ready for whatever comes next.
Want To Know More from The Experts?
Concerned your system might need upgrading? Get in touch today for a no-obligation review.
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