Act Now to Move Your Affected BT Services

If you're a BT customer, a letter is on its way to you. It's the one telling you the UK's analogue phone network, the Public Switched Telephone Network (PSTN), is closing on 31 January 2027, and that any service you still have running on it needs to move to a digital alternative.

As a BT Authorised Reseller, Connection Worx can help you understand exactly what you've got, what's at risk, and what your options are. We'll map your active lines, identify any hidden dependencies, and help you move smoothly to a digital alternative like BT Cloud Voice and resilient full fibre broadband, well before the deadline.

Your BT services are closing

The PSTN closes on 31 January 2027. From 1 February 2027, Openreach begins removing these services from its network in phases. BT relies on Openreach for the access it needs to provide these services, so if an affected service is still on the PSTN after that date, it will cease and the contract for it will end on the day it's switched off.

If you want to keep your service, you need to move it to a suitable digital alternative. And the last date you can submit an order for a replacement digital service is 30 November 2026.

Which services are affected?

This notice applies to these types of service:

• Integrated Services Digital Network (ISDN), including ISDN2 and ISDN30
• Analogue (PSTN) phone line (some)
• Multiline (PSTN) phone lines
• Featureline (some)
• Remote Call Forwarding (RCF)
• Access Distribution System (ADS)

Only the services shown on your letter are covered by the notice, along with the telephone numbers listed against them.

Check any equipment connected to your lines

This is the bit people miss. Your phone lines may also support other equipment or services, including:

• Alarm systems
• Lift lines
• Payment terminals
• Fax machines
• Telecare devices
• Door entry systems
• Monitoring equipment
• Other machine-to-machine or voiceband data devices

If you're not sure what's connected to your lines, it's worth checking and speaking to your equipment provider about moving to a replacement service. If any affected line supports emergency calling, telecare, vulnerable users or another critical service, you should make alternative arrangements to support it as soon as possible.

What you need to do now

Don't wait for your service to close. Check the telephone numbers listed in your letter and make sure you have plans in place to move each affected service to a suitable alternative. If you haven't arranged that yet, please contact us as soon as possible so we can discuss your options.

If you've already arranged to move all the affected services shown in your notice, you don't need to arrange another migration.

We're here to help

We know changing services can take planning. If you haven't already arranged a move, or you're unsure what this change means for your business, the best thing you can do is talk to someone who lives and breathes this every day. Whether your services are currently with BT or another provider, we can help you sense-check what you have and what may need attention, before it becomes urgent.

This article is based on information provided in BT's formal customer notice regarding the PSTN switch-off. All dates and details are correct as of the date of that notice.