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Don’t leave it too late to migrate

In less than a year, the UK’s analogue phone network will be switched off. You need to act now to beat the deadline, so you can keep your customers connected and your business ready for tomorrow’s opportunities.

The clock’s ticking, but you’re not alone. We’re going all-in on all-IP, giving you the support, tools and incentives you need to deliver smooth digital migrations and secure your future growth.

500k+ UK businesses still haven’t replaced their legacy phone lines.

It’s down to the wire

This is the end of the line for the Public Switched Telephone Network (PSTN). The industry first announced the switch-off in 2017, and the original deadline was already extended from December 2025 to 31 January 2027 - but there won’t be any more extensions.

The PSTN has to be replaced because it can no longer keep up with modern demands, and it’s becoming increasingly unreliable and expensive to maintain. If you haven’t already completed or started migrating your customers, you need to take action. Stand still, and you risk being left behind.

The right choice for digital

We give you the network reach, capacity and performance for long-term all-IP success. Read our datasheet for more information.

Download datasheet

Analogue prices are going up.
Switch now to avoid the extra costs.

Why migrate your customers with us?

Simplicity

With our expert support, easy order journeys and UK-wide network reach, you don’t need to strain your business to deliver the all-IP future.

Opportunity

Over 2.8 million analogue lines still need to be switched. Seize that opportunity, backed by our extensive digital portfolio and money-saving offers.

Reliability

Switch your customers to our high-availability all-IP networks to keep them connected, without delays or disruption - and protect your reputation.

Key dates for your diary

Most Openreach exchanges have already entered into a stop-sell phase, meaning no more Wholesale Line Rental (WLR) products can be sold in them.

Remaining exchanges to enter stop-sell:

  • 5 June 2026 - 164 exchanges.
  • 19 August - 137 exchanges.
  • 6 November - 94 exchanges.
  • TBD - 43 exchanges.

From 1 April 2026, the price of WLR will increase, followed by two more increases on 1 July 2026 and 1 October 2026. After 31 January 2026, any remaining analogue lines will no longer work.

The PSTN has to be replaced because it can no longer keep up with modern demands, and it’s becoming increasingly unreliable and expensive to maintain. If you haven’t already completed or started migrating your customers, you need to take action. Stand still, and you risk being left behind.

Hardware failure was the primary cause
of PSTN incidents in 2025.

6 ways to make all-IP easy

1

Switch without a hitch

Keep your customers connected with Smooth Switch (previously known as Session Steering). This clever bit of engineering gives you seamless broadband authentication, even when key details like domains and logins change, and you won’t even have to touch your customers’ routers.
Discover Smooth Switch now >

4

Explore our discounts

Boost your bottom line with our latest offers. Right now, you can get up to 100% off FTTP upgrade fees and up to £64 credit per order when you switch customers to SOGEA. Visit our Benefits Hub or speak to your account manager to see how much you can save right now.

2

Speed things up with our migration tools

To help you with the transition to all-IP, we’ve built two dedicated time-saving tools. Our bulk migration tool lets you transfer at least 50 legacy broadband circuits at once, and our bulk acquisition tool lets you place orders in bulk for broadband circuits that are new to BT Wholesale.
Learn more about these tools >

5

Maximise your marketing

You need buy-in from your customers - and that means keeping them informed about the switch-off and the benefits of all-IP. To support you, we’ve created a collection of white-label marketing assets, so you can launch new campaigns with minimal effort. Visit our Benefits Hub or contact partner.plus@bt.com for more information.

3

Let us do the legwork

You can also save time and effort with our IP Transformation Services. From site surveys and portfolio analysis to service migration and managed decommissioning of legacy hardware, we can take care of everything, leaving you to focus on building your customer relationships and your revenue.
See how we can help >

6

Choose the right solutions for every challenge

Every business needs to switch to all-IP, but not every business is the same. That’s why we’ve built the broadest and most flexible product portfolio in the industry, from broadband and enterprise connectivity to hosted voice and UCaaS solutions.
Explore what we can do for you >

Think beyond phones

31 January 2027 is the cut-off point not just for analogue phones but for any device that relies on the PSTN. That includes alarm systems, payment machines, lift phones, door entry systems, telecare devices and more.

Make sure you fully audit your customers’ connectivity estates so you don’t miss anything.

We’re here to help

Not sure how to plan and carry out your all-IP migrations? Please get in touch with your BT Wholesale account manager, because our business is your success, and we’re always ready to support you.

FAQs

Why is this happening?

Although the PSTN has been upgraded many times, it’s still built on old-fashioned copper technology. This is no longer suitable for the kind of high-bandwidth, digital business practices of today, such as video conferencing, collaborative cloud working and file sharing. The PSTN is also becoming more difficult and expensive to maintain.

What’s affected by the switch-off?

Any devices that rely on the PTSN. Some of these devices can be adapted to run on all-IP networks, but others will need to be replaced.

Is ISDN being switched off too?

Yes, the Integrated Services Digital Network (ISDN) will also be shut down on 31 January 2027.

What will happen after 31 January 2027?

After this date, the PSTN and ISDN will no longer function, and neither will any devices that rely on them. It’s vital to start your migrations as soon as possible, because the longer you leave it, the more likely it is that you and your customer will face disruption. Our recommended cut-off for migrations was the end of December 2025.

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