The UK is currently moving away from the Public Switched Telephone Network (PSTN), the traditional copper landline infrastructure that has supported telephone and alarm communications for decades.
As part of this nationwide transition, all PSTN services will be permanently withdrawn and replaced by modern digital networks. While the final switch-off is scheduled for January 2027, the migration is already underway, meaning some services may be affected sooner depending on local infrastructure changes.
For alarm systems that rely on a landline connection for signalling or alarm monitoring, this is a significant change that should not be overlooked.
How Will This Affect Our Customers?
Many monitored intruder and fire alarm systems use a traditional telephone line to communicate with an Alarm Receiving Centre (ARC). Once PSTN services are withdrawn, these systems will no longer be able to send signals via the landline connection.
In some cases, the alarm system may continue to function locally, but remote monitoring and signalling will be lost. This means alarm activations may not be received by the alarm monitoring centre, potentially leaving properties without the level of protection they currently rely on.
The impact will be felt across a wide range of installations, including residential alarm systems, commercial premises, offices, warehouses and other monitored properties.
A simple system review can confirm whether your alarm will continue to operate once PSTN services are withdrawn.
What Are Your Upgrade Options?
To ensure continued protection, alarm systems that rely on PSTN signalling will need to be upgraded to a digital alternative, either:
- Dual Path Signalling
- GPRS Signalling
- LAN Signalling
The most common solution is a modern signalling device that communicates via broadband, the mobile network, or a combination of both. Dual-path signalling, which uses both IP and mobile communications, is widely regarded as the most reliable option as it provides a backup path should one connection fail.
For older systems, a wider upgrade may be recommended to ensure compatibility with modern alarm monitoring standards and future requirements.
A professional assessment can quickly determine whether your existing system is affected and identify the most appropriate solution.
How Wilson Alarms Can Help
At Wilson Alarms, we are helping customers prepare for the PSTN switch-off by assessing existing systems and upgrading them to modern digital signalling solutions.
Our engineers can determine whether your alarm is affected, recommend the most suitable upgrade option, and ensure your monitoring remains fully operational throughout the transition.
Important: If your alarm system is monitored via a landline connection, it may require upgrading before PSTN services are withdrawn in your area.
So, what do you need to do?
- Step One: Contact our friendly team at Wilson Alarms
- Step Two: We'll check whether your monitored system is affected by the PSTN switch-off and confirm if an upgrade is required.
- Step Three: We'll discuss the available options and recommend the most suitable solution for your property.
- Step Four: We'll arrange for one of our engineers to carry out the upgrade, either as a dedicated visit or during your next scheduled service appointment where possible.
If your alarm system currently relies on a landline connection, now is the ideal time to review your setup and plan ahead. Taking action early will help avoid disruption and ensure your property remains protected as the UK completes the move to digital communications.
