If you still have a traditional landline plugged into a socket at your office in Tavistock, Plymouth, or anywhere across the UK, you aren't just using old tech, you’re using a system that is officially on its last legs.
As of May 2026, we are deep into the final countdown. The century-old copper network that has powered our phone calls for decades is being retired. The PSTN (Public Switched Telephone Network) switch-off isn't a vague future event anymore; it’s happening right now, and the final hard deadline of January 2027 is fast approaching.
At ABC Service, we’ve spent the last couple of years helping local organisations across Devon and Cornwall navigate this transition. We’ve seen firsthand that those who move early don’t just "survive" the switch, they actually end up with a much better, cheaper, and more flexible way of working.
In this guide, we’re going to strip away the jargon and explain exactly why your landline is obsolete and, more importantly, what you need to do to keep your business running smoothly.
What Exactly is the PSTN Switch-Off?
For over 100 years, the UK has relied on a network of copper wires to carry analogue voice data. It’s been remarkably reliable, but it’s now outdated, expensive to maintain, and simply can’t keep up with the demands of a modern digital economy.
Openreach, the company that maintains the UK's telecoms infrastructure, is replacing this ageing copper network with a modern, high-speed digital network. This means every single phone line in the country must move to Voice over Internet Protocol (VoIP).
Why is this happening?
Maintaining two separate networks, the old copper one and the new fibre-optic one, is no longer sustainable. Parts for the old exchanges are becoming harder to find, and the engineers who know how to fix them are retiring. By moving everything to a single digital network, the UK gets a more reliable and energy-efficient communication system.
"The transition to digital is not just about changing how we make phone calls; it's about building a foundation for the next 50 years of innovation." , Industry consensus on the 2027 deadline.
The Timeline: Where Are We Now?
It’s easy to get confused by the dates, especially since the original 2025 deadline was pushed back to January 2027. However, waiting until the last minute is a risky strategy.
- September 2023 (The "Stop-Sell"): Openreach stopped selling new analogue lines nationwide. If you tried to get a new traditional landline after this date, you were likely told "no" and steered toward a digital solution.
- December 2025 (All-IP Mode): Many exchanges across the UK were moved into "all-IP" mode, meaning the prioritisation of digital traffic became the norm.
- May 2026 (Right Now): We are currently in the bulk migration phase. Providers are working through their lists to move remaining customers over. Engineer availability is tightening, and hardware lead times are starting to grow.
- January 2027 (The Final Cut): This is the end of the road. Any remaining analogue lines will simply cease to function.
Bold truth: If you wait until the autumn of 2026 to start your migration, you may find yourself at the back of a very long queue for installation and support.
It’s Not Just Your Phone: The "Hidden" Risks
One of the biggest misconceptions we encounter is that the PSTN switch-off only affects your desk phones. Unfortunately, the copper network carries more than just voices. There are several "hidden" devices that might still be relying on that old analogue signal:
- Alarm Systems: Many older burglar and fire alarms use a PSTN line to dial out to a monitoring centre.
- Lift Emergency Phones: This is a critical safety issue. If your building has a lift, the emergency call button likely relies on a landline.
- Credit Card Machines: Older PDQ terminals use dial-up connections.
- Fax Machines: Yes, some industries still use them! Standard faxing often fails over digital lines without a specific adapter.
- Door Entry Systems: Some intercoms use the phone network to let people into buildings.
We recommend doing a "walk-around" of your premises. Look for anything that plugs into a standard telephone wall socket. If it’s there, it needs a plan.
VoIP: Why Moving is Actually an Upgrade
While being "forced" to change can be annoying, the move to VoIP phone systems is actually a massive win for SMEs. Here’s why we think it’s a fantastic move for your business:
1. Massive Cost Savings
Traditional business phone lines come with expensive line rental and high call charges. VoIP operates over your internet connection, often including "unlimited" UK landline and mobile minutes in a flat monthly fee. Most of our clients see a significant drop in their monthly telecoms spend.
2. Ultimate Flexibility
With a traditional landline, you are tied to your desk. With VoIP, your "office phone" is wherever you are. You can have a physical handset on your desk in Tavistock, an app on your laptop in a coffee shop in Plymouth, and a mobile app on your phone while you're visiting clients in Okehampton. They all share the same business number.
3. Professional Features as Standard
Features that used to cost a fortune on old PBX systems, like auto-attendants ("Press 1 for Sales"), call recording, and voicemail-to-email, are usually included as standard with modern VoIP packages.
4. Scalability
Need to add a new member of staff? You don't need an engineer to come out and wire a new socket. You just order a new handset or set up a new user on the software, and they are ready to go in minutes.
The ABC Service Approach: A Responsible Local Partner
When you search for VoIP, you’ll find hundreds of faceless national providers. So, why choose a local partner like ABC Service?
We believe in humble authority. We know the tech inside out, but we also know the local area. We know that broadband speeds in some parts of Devon can be "characterful," and we account for that. We don't just ship you a box and wish you luck; we make sure your business broadband is up to the task of carrying your voice traffic without glitches or dropouts.
When you call us, you aren't stuck in a call centre queue. You’re talking to people like Brett and the rest of our Tavistock-based team. We take a personal interest in making sure your business stays connected because we’re part of the same community.
"Our goal isn't just to sell a phone system; it's to ensure our neighbours in the local business community aren't left in the dark when the copper network finally goes quiet." , Brett, Director of ABC Service.
Your PSTN Transition Checklist
If you haven't moved yet, here is a straightforward 4-step plan to get it sorted before the 2027 deadline:
- Audit Your Lines: Identify every single analogue line you currently pay for. Check your bills and your physical sockets.
- Check Your Non-Voice Devices: Call your alarm provider and lift maintenance company. Ask them: "Is my system compatible with a digital/VoIP line?"
- Evaluate Your Internet: VoIP relies on your broadband. If your internet is patchy, your phone calls will be too. We can help you upgrade to a more reliable fibre connection if needed.
- Choose Your Hardware: Do you want physical desk phones, or are you happy using headsets and computers? Most businesses choose a mix of both.
Frequently Asked Questions
Can I keep my existing phone number?
Yes! This is called "porting." We can move your existing number away from the old copper network and onto your new VoIP system so your customers never notice a difference.
What happens if my internet goes down?
Because VoIP is digital, if your office internet fails, the system can automatically reroute calls to your mobile phones or another office location. It’s actually more resilient than the old system.
Is VoIP call quality as good as a landline?
Actually, it’s usually better. VoIP supports "HD Voice," which offers much clearer audio than the limited frequency range of an old analogue line.
Summary: Don't Wait for the Silence
The PSTN switch-off is a once-in-a-generation change to our national infrastructure. While it might feel like another "to-do" item on a busy list, it is an essential one. By May 2026, the window for a stress-free transition is closing.
Moving to VoIP is an opportunity to modernise your business, reduce your costs, and embrace a more flexible way of working.
If you’re feeling overwhelmed by the technicalities or just want an honest, local opinion on what you actually need, get in touch with us. We’re here to help homes and businesses across Tavistock, Plymouth, Okehampton, and the wider UK make the switch with zero fuss.
Contact the ABC Service team today to start your digital migration. Let’s make sure your business is ready for 2027 and beyond.