Prepare Your Business for the 2025 PSTN Switch-Off: What You Need to Know

In December 2025, the United Kingdom will witness a significant shift in telecommunications with the switch-off of the Public Switched Telephone Network (PSTN). This move to digital communication will affect every business that currently uses traditional phone lines. Here’s what you need to know to ensure your business remains connected and competitive.

Understanding the Impact on Your Business

Voice Communication

The discontinuation of PSTN means that all traditional voice services will need to transition to digital alternatives like Voice over Internet Protocol (VoIP). If your business relies on PSTN for phone calls, fax machines, or alarm systems, you will need to switch to IP-based solutions to continue operations without interruption.


The upcoming PSTN switch-off signifies that traditional landlines won’t operate over the old copper wire network anymore. You can still obtain broadband and phone services, but these will be provided through a digital line instead. Currently, several types of broadband, including ADSL and FTTC, utilize this aging copper network.

If your broadband service is currently delivered via these copper lines, you will need to transition to a broadband solution that does not depend on the PSTN network, such as SoGEA, NGA, FTTP, or a leased line. These alternatives provide a more modern and reliable foundation for your connectivity needs.

Equipment Compatibility

Equipment that currently uses PSTN lines, such as certain older phone systems and fax machines, may no longer function post-switch-off. It’s important to review your hardware and determine what needs upgrading or replacing.

How to Check if Your Business Needs to Take Action

Audit Your Current Systems

Start by auditing your current telecommunications setup. Identify all elements that rely on PSTN and ISDN lines. Evaluate your broadband’s capacity and reliability—upgrades may be necessary to support new digital communication tools.

Service Provider Consultations

Reach out to your telecom provider to discuss your options. Providers should offer clear timelines and alternative services available in your area. Make sure you understand when your current services will be phased out and what you need to do to prepare.

Legal and Compliance Needs

Consider any legal and compliance implications, especially if you’re in an industry where communication disruptions can lead to serious liabilities, such as healthcare or finance.

Planning Your Transition to Avoid Disruption

Choosing the Right Solutions

Select digital communication solutions that align with your business needs. Options like VoIP systems offer flexibility and features such as call forwarding, voicemail to email, and integration with other online tools.

Implementation Timeline

Develop a detailed migration timeline. Start by trailing new systems in part of your business if possible, and use this phase to solve any issues before full implementation. Include key dates provided by your service provider for when changes will occur.

Training and Support

Prepare your staff for the transition by scheduling training sessions well in advance. Make sure support is available to address any issues as your team gets accustomed to the new systems.

Long-Term Benefits of Digital Communication Systems

Switching to digital communications is not just a necessity—it’s an opportunity. Digital systems provide superior call quality, are easier to manage, and integrate seamlessly with modern business tools. They’re also scalable, making it easier to adjust as your business grows and changes.


The PSTN switch-off in 2025 is a pivotal moment for businesses across the UK. By preparing now, you can ensure that your business transitions smoothly and continues to thrive in a digital-first world.

Need Help?

Need assistance planning for the PSTN switch-off? Contact us today for expert guidance and solutions tailored to your business needs.


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