BT Phone Line Switch Off: Is Your Business Ready?
This major BT switch off will affect any business still using traditional landlines but with Power Fibre, switching to a modern VoIP system is seamless, hands-off, and won’t disrupt your day-to-day operations.
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What is the BT Phone Line Switch-Off?
Traditional business phone lines in the UK are being phased out. If your phones plug into a BT wall socket or rely on a landline to make calls, they’ll soon stop working.. even if they’ve served you well for years. BT is switching off the old copper phone network, and all businesses will need to move to a digital VoIP phone system before the deadline of January 2027.
This change affects both PSTN (standard phone lines) and ISDN (multi-line systems often used in offices), which have powered UK communications for decades. These copper-based services are no longer being supported, and once the switch off is complete, they’ll be disconnected entirely. At Power Fibre, we help you move to a VoIP system with no disruption to your business and ensure everything stays connected, supported, and future-proof.
You need to switch if you have:
ADSL/SoGEA
(Copper Broadband)
ISDN
(Copper Lines)
PSTN
(Copper Lines)
Partnerships With Industry Leaders
Still using ISDN or landline phones? With the PSTN and ISDN switch off now underway, your current system will soon stop working. Many businesses have waited for fibre to reach their area, but in most cases, we can already get you connected. At Power Fibre, we partner with multiple UK providers, which means we often deliver fibre and VoIP-ready solutions even when others can’t. Don’t wait until the switch off causes disruption — we’ll help you upgrade now, with no hassle.
What replaces the old copper phone lines?
Traditional copper phone lines including PSTN and ISDN are being replaced by VoIP (Voice over Internet Protocol) and digital voice services. These systems run over broadband rather than physical phone lines, allowing voice calls to travel through the internet instead of the old copper network.
VoIP provides the same core functionality as traditional phones, including desk phones, extensions, and call transfers, but with more flexibility and far greater scalability. It’s compatible with full fibre (FTTP) and other high-speed internet services, and it can support everything from basic voice calls to advanced features like call recording, routing, and integration with CRMs and Microsoft Teams.
With the right setup, VoIP is not only a direct replacement for legacy systems, it’s a clear upgrade.
Switching to Power Fibre VoIP Means:
Reduced
Costs
Keep Your
Number
Clearer
Calls
Remote Work Ready
Mobile App
Included
Advanced
Analytics
Remote
Transfer
Call
Recording
UK Based Support
What Our Clients Say About Us
"They walked me through every step of the setup process, answered all my questions clearly, and made sure everything was working perfectly before they left. BT should take note from these guys!!"
"A special thanks to Harry, Max & George for making the process so seamless. We upgraded our whole system from switches, cables, phones and broadband and it’s all been exactly as described. From copper lines getting 20mb at best to 500mb fibre."
"The install was seamless, phones and broadband work perfect, no long queues on the phone or AI chat bots and they always go the extra mile to make sure we’re happy. Customer service top notch from Max and George."
How To Switch My Business To Full Fibre?
Switching your business to VoIP is straightforward — and we take care of the entire process for you. Whether you're moving from PSTN, ISDN, or another phone system, we ensure a smooth, disruption-free transition to modern, internet-based phones.
We begin by reviewing your current setup, understanding how your phones are used, and identifying any systems that still rely on the copper network.
Once the right VoIP licence is in place, we’ll configure your users, port your numbers, and install any necessary equipment. A Power Fibre engineer will visit your business in person to ensure everything is connected, tested, and working exactly as it should, giving you complete peace of mind from day one.
What to do now?
Fill in any form on this
page or give us a call
One of our experts will make contact and plan out your new system
Your new VoIP Phone System is ordered and we handle the rest!
Check Your Postcode Today
Use our postcode checker to see if Full Fibre to the Premises (FTTP) is available for your business. As the UK retires its copper network, upgrading to faster, more reliable full fibre broadband has never been more important. Enter your postcode to explore FTTP solutions designed to keep your business connected and future-ready.
Frequently asked questions
Contact
Izabella House, 24-26 Regent Place
Birmingham, B1 3NJ
0121 798 2508
Have questions about broadband, VoIP, or energy? Our friendly experts are here to help. Whether you need advice on one service or all three. Use the contact details below to get started.