The BT Digital Landline Switch — What St Helens Residents Need to Know

If you've got a landline — and most households in St Helens still do — it's about to change. BT is switching the entire UK from the old analogue phone network to a new digital system. Over 3 million homes have already been moved, and the rest are being switched over now, with the old network shutting down completely by January 2027.

For most people, this will happen without much fuss. But for some — particularly elderly residents, people with medical alarms, and those without broadband — it could cause real problems if you're not prepared.

What's Actually Changing?

Right now, your landline works over copper wires that have been in the ground since the days of the GPO. Your phone plugs into a socket in the wall and works independently of your broadband, your electricity, and everything else in your house.

The new system — BT calls it Digital Voice — routes your phone calls over your broadband connection instead. It's VoIP (Voice over Internet Protocol) — the same technology that powers WhatsApp calls and Zoom.

In practice, this means your phone will plug into a small adapter connected to your broadband router instead of the wall socket. BT will send you a Digital Voice adapter (a small box that plugs into the back of your BT Smart Hub) and you connect your existing phone to that. Your phone number stays the same. You dial and receive calls the same way. For most people, the experience is identical — the call quality is actually better.

The Timeline

What Most People Need to Do

If you have broadband and a BT landline, probably nothing. BT will contact you before your switch and send you the adapter. You plug your phone into the adapter, follow a couple of on-screen prompts on the hub, and you're done. The whole process takes about 10 minutes.

If you're with another provider (Sky, TalkTalk, Vodafone, etc.), the same thing is happening — they're all moving to digital voice. The process is similar, though the adapter and timing may differ.

The Problems You Need to Know About

1. It doesn't work in power cuts

This is the biggest change. Your old analogue phone was powered by the phone line itself — it worked even when the electricity was out. Digital Voice needs your broadband router to be powered on, so if the power goes out, your landline goes out too.

BT provides a battery backup unit for vulnerable customers, but it only lasts about an hour. After that, you're relying on your mobile phone — which is fine if you have decent mobile signal. Not so fine if you don't.

Parts of Billinge, Bold, and the more rural edges of the St Helens borough have patchy mobile coverage. If that's you and you rely on your landline, this is worth thinking about now.

2. Telecare and alarm systems may not work

This has been a major concern nationally. Ofcom has warned BT about the risks to vulnerable customers being left without working telecare services during the switch, and has threatened investigation over cases where elderly customers have been moved without proper checks. If you have a family member in St Helens, Haydock, Newton-le-Willows, or anywhere locally who relies on one of these systems, check it for them.

3. No broadband = no landline

If you currently have a landline but no broadband, the switch is a bigger deal. Digital Voice requires a broadband connection to work. BT says they won't force the switch on landline-only customers who'd be left without service, but the long-term direction is clear — you'll eventually need broadband to have a phone line.

For people in St Helens who only have a landline for occasional use or emergencies, this might be the push to consider whether you actually need it at all, or whether a mobile phone on a cheap plan would be a better option going forward.

Who's Most Affected?

What You Should Check

1. Do you or a family member use a telecare or medical alarm? Contact the provider to check if it's compatible with Digital Voice. If not, ask what the upgrade path is. Don't wait for BT to tell you — they may not know what equipment you have
2. What's your mobile signal like at home? If the power goes out and your landline goes with it, your mobile is your only option. If signal is weak, consider a battery backup or ask BT about their backup unit for vulnerable customers
3. Do you have broadband? If not, start thinking about whether you want to get it (which will make the landline switch seamless) or whether you'd rather drop the landline entirely and go mobile-only
4. Is your broadband reliable? If your internet drops out regularly, your phone will too after the switch. If you're having broadband issues in St Helens, it's worth getting those sorted before your landline depends on it

For more detail on the switch and your rights, BT's official update on the Digital Voice rollout has the latest figures, and Which? has a thorough guide covering your rights and what to expect.