BT’s ditching its PSTN and ISDN networks: Are you ready? | Planet Telecom
Customer Helpline: 08000 886 886

BT’s ditching its PSTN and ISDN networks: make sure you’re ready

BT has announced that it’s moving all its telephone and internet services from its current PSTN and ISDN systems to a single new IP (Internet Protocol) network. This will happen by 2025.

If you’re not familiar with the jargon, PSTN is Public Switched Telephone Network, essentially an analogue, wire-based system. ISDN is Integrated Services Digital Network. This is the current digital network that most of us rely on for our internet connection as well as our phone calls.

What does this mean for your business?

The move to IP means all your phone calls are carried by an internet connection, along with all your online activity like web browsing, email and social media.

Of course, many businesses are already using VoIP — Voice Over IP – for their phone calls; in order to avoid the high line rental charges that BT and others demand, and because it’s an extremely flexible and easy-to-manage way to run your company’s phones. 

But what if you’re still on one of the old systems? Put simply, it’s time to start exploring the IP alternatives. As BT runs down the old lines, you should consider jumping ship sooner rather than later. If only for the amount of money you could save right now.

First deadline: 2020 

Although the old networks aren’t being deactivated until 2025, you won’t be able to buy equipment that connects to them after 2020 — just two years away. So right now’s the time to start planning. Certainly, it makes no sense to consider upgrading your ISDN system when you’ll have to ditch it in 2025 at the latest. 

We’re here to help

Whether you’re a small business based in a single location or a larger enterprise with several offices and remote workers, we can configure your new VoIP system to match. Just call us for a no-obligation chat.

The savings you can make by switching to a Planet Telecom VoIP system are staggering. Most users see a reduction in their monthly phone costs of at least 75%.

Call us today, free on 08000 886 886 to see how much your company might save by switching right now.

Recent 'Articles' articles

Planet eSIM

Introducing Planet eSIM

Stay connected wherever you go – instantly. We’re excited to introduce Planet eSIM – the newest addition to the Planet Telecom family of services. Whether you’re travelling for business or pleasure, Planet eSIM lets you stay connected around the world with instant, contract-free mobile data. No waiting for delivery, no fiddly SIM cards. Just scan,…

Planet Telecom

It’s Official: Planet Numbers is Now Planet Telecom Ltd!

It’s been a long time coming – but, as we approach our 26th year in business, Planet Numbers Limited has officially changed its name – we’re now Planet Telecom Ltd, effective as of April 2025. It’s a change that reflects how far our organisation has come over the years – starting from humble beginnings, evolving…

The 2025 Telecom Landscape: What Businesses Need to Know

We’re well into 2025 now, and for businesses across the UK, it’s time to start thinking carefully about how to communicate best with clients and customers as the months progress. With VoIP set to replace traditional telephony outright within the next two years, business owners have a few big steps to take so that their…

Request a call

Call Back Form 2025