The Big Switch-Off and What It Means for Your Business
In 2027, the UK’s traditional landline network (PSTN) will be permanently switched off. This marks a major shift in how businesses communicate — especially for organisations still relying on analogue phone systems. But what exactly is happening, and what should you be doing now to prepare?
Let’s break it down.
Why Are Landlines Being Switched Off?
BT Openreach has announced that by December 2025, all traditional copper-based phone lines (the Public Switched Telephone Network or PSTN) will stop being sold. By 2027, they’ll be fully withdrawn from service.
The reason? The PSTN infrastructure is outdated, expensive to maintain, and no longer fit for modern digital communication. In its place, VoIP (Voice over IP) and digital networks are taking over.
If your business still uses:
• Traditional desk phones connected via copper lines
• Analogue fax machines
• Alarm systems or EPOS systems that rely on PSTN
…you’ll need to transition to digital alternatives — ideally well before 2027.
What Is Replacing Traditional Landlines?
The future lies in VoIP and digital phone systems.
VoIP uses your internet connection to make and receive calls. It’s more flexible, scalable, and cost-effective than PSTN-based services. Rather than relying on physical copper wires, it runs through your broadband or leased line.
At Fidelis Plus, we provide business-grade VoIP systems designed to replace traditional phone lines with modern, cloud-based telephony that suits today’s working environments — whether your team is in the office, remote, or hybrid.
What Happens If You Don’t Switch?
If you haven’t migrated away from PSTN by 2027, your legacy phone systems will stop working. This could impact:
• Office phones and switchboards
• Credit card machines (PDQs)
• Alarm lines
• Lift emergency phones
• Fax and telemetry equipment
Essentially, any device using a traditional phone line will become obsolete.
Planning your move early avoids disruption and gives you time to choose the right system and provider.
How to Prepare Your Business for the PSTN Switch-Off
1. Audit Your Existing Infrastructure
List every device and service using a traditional phone line. This includes phones, faxes, alarm systems, and more.
2. Upgrade to VoIP
Modern VoIP solutions can replicate — and enhance — everything your current landline does. You’ll gain access to features like call forwarding, voicemail-to-email, and flexible working.
Fidelis Plus Business VoIP offers UK-based support, easy installation, and systems tailored to your needs — whether you’re a solicitor’s office, estate agent, or call centre.
3. Ensure Sufficient Broadband
VoIP relies on stable, high-speed internet. If your current broadband isn’t up to scratch, it’s worth upgrading now.
Check out our Business Broadband packages — optimised for voice traffic and designed for SMEs who need reliable uptime and consistent performance.
4. Consider Your Mobile Workforce
For teams working remotely or on the go, pairing VoIP with Business Mobile solutions ensures your staff stay connected — with one business number across all devices.
Common Questions About the 2027 Switch-Off
Will home phone lines be affected?
Yes — although the impact is most urgent for businesses. Residential customers will also need to move to digital alternatives offered by their providers.
Can I keep my existing business number?
Absolutely. With VoIP, you can port your current number and keep it even if you move offices or switch broadband providers.
Is it expensive to switch to VoIP?
Not necessarily. Many businesses find they save money long-term by ditching line rental and taking advantage of VoIP’s flexibility. Fidelis Plus offers scalable packages with transparent pricing and UK-based support.
Don’t Leave It Too Late
2027 may sound far away — but many areas are already phasing out PSTN, and some providers have stopped selling new analogue services altogether. Acting now gives you time to:
• Avoid last-minute disruption
• Train staff on new systems
• Improve call quality and customer experience
If you’re unsure where to begin, you’re not alone. Thousands of UK SMEs are in the same position — and we’re here to help.
Talk to Fidelis Plus — We’ll Help You Make the Switch
At Fidelis Plus, we specialise in helping businesses navigate the landline switch-off with bespoke VoIP, broadband, and mobile solutions. Whether you want a simple phone replacement or a complete telecoms overhaul, we’ll guide you through the process — clearly and without jargon.
Get in touch today for a free, no-pressure consultation. We’ll review your current setup, explain your options, and help you stay ahead of 2027 with confidence.
