What's happening?
As part of our nationwide move to a digital network, by 31 January 2027, the following analogue networks will be switched off:
- Public Switched Telephone Network (PSTN).
- Integrated Services Digital Network (ISDN).
- Asymmetric Digital Subscriber Line (ADSL).
- Other related analogue services.
Collectively, these make up the Wholesale Line Rental (WLR) network.
We often refer to lines that depend on these old networks as traditional phone lines.
What you’ll need to do
This means if you’re a business customer who uses any of these analogue networks, you’ll need to move over to a fully digital service that uses Internet Protocol (IP) technology before 31 January 2027.
Discover our IP technology solutions
Services this will affect
Traditional phone lines aren't just for making voice calls. There are also various products and services that use these lines, such as alarms, EPOS machines, door entry systems, CCTV, fax machines, and more.
If your broadband relies on a traditional phone line, you may also need to upgrade this too.
These devices could be affected during the transition, which is why it’s important for you to understand what products and services you currently depend on.
Our Protective Migrations programme
While many of our customers have already moved to digital, thousands of organisations still rely on our old PSTN, ISDN and ADSL networks.
We’re now taking steps to safeguard some customers’ lines that remain on our old networks through our Protective Migrations programme – moving them automatically to an IP-technology solution.
If this applies to you, we will notify you in advance by email or post.
Services that cannot be moved with our Protective Migrations programme
Some services, including ISDN, Featureline, multiline and certain broadband accesses cannot be moved automatically with our Protective Migrations programme.
These services will stop working from 31 January 2027 if you do not move them to an IP technology solution.
If you use any of these services, you should speak to your BT account manager who can help you move to the most suitable IP technology solution for your business.
If you do not have an account manager, you can call us on 0800 023 2698, or discover our IP technology solutions on our website.
Why is this change happening?
Our old networks are fragile, difficult to maintain and unable to keep up with the demands of modern-day communications.
The switch to a digital network is a crucial step in modernising the UK’s connectivity. Digital networks are more reliable, flexible, and built to support the way businesses operate today.
Our commitment to you
We’re committed to ensuring no one is left behind as our old networks switch off, which is why we’re giving customers plenty of notice ahead of any service changes.
As part of the Public Switched Telephone Network Charter, we’re also working with Ofcom and the Department for Science, Innovation and Technology (DSIT) to make sure no Critical National Infrastructure (CNI) services are impacted.
Need more help?
Check out our frequently asked questions.
How do I know if my services rely on old networks?
If you’re unsure, reach out to your BT account manager who can help identify any services that may be affected, or contact us on 0800 023 2698.
What happens if I do not move to a digital, IP technology solution?
If you do not move before 31 January 2027, your service may be automatically moved to a basic IP-technology solution through our Protective Migrations programme.
If your service cannot be automatically moved through the programme, any phone lines, broadband, or connected services you have that rely on our old networks (such as alarms, lifts, and CCTV) could stop working, or be moved to a limited voice-only service.
Will my device continue to work after the switch off?
This will depend on your device. You should contact your device provider or speak to your BT account manager, who can advise you on compatible IP technology solutions. You can also call us on 0800 023 2698.
Will moving to an IP technology solution require significant changes to my current phone system setup?
Thanks to our wide range of options, the upgrade to an IP technology solution can be tailored to your business' specific needs. Our team will work closely with you to make sure the transition is smooth, adapting your existing setup and minimising disruption.
Can I keep my existing phone numbers when switching to an IP technology solution?
Yes, you can keep your current phone numbers when moving to a digital, IP technology solution. You can also take those numbers with you wherever you move in the future as they’ll no longer be tied to specific areas. Our team will guide you through the number porting process, making sure you have a seamless transition without losing important contacts.
Can IP technology solutions integrate with other communication tools and software we currently use?
Yes – our IP technology solutions offer seamless integration with various communication tools and software, including customer relationship management (CRM) systems, email clients, calendars, and team collaboration platforms, optimising efficiency and workflows.
What extra features and capabilities can IP technology solutions offer?
Digital IP technology solutions provide an array of advanced features such as auto-attendants, call forwarding, call recording, virtual meetings, instant messaging, and integration with collaboration tools. These features can enhance productivity and streamline your communications.
What broadband options are currently available in my area?
Find out what broadband options are currently available in your area by entering your postcode in our deals tool.
Will my contract terms change if my line is moved through the Protective Migrations programme?
Yes. If your line is automatically moved to a fully-digital IP technology solution (as part of our Protective Migrations programme), you’ll receive a legal notice explaining any changes to your contract terms.
Will there be an increase in price associated with the network switch off?
After you move to an IP technology solution, pricing may change. In some cases, this could include a price increase. You will always be given the required notice for this change.
Want to find out more?
Contact your BT account manager to discuss what these changes mean for you, or call us on 0800 023 2698.