The Problem with Existing PSTN and ISDN Services

There is a problem with your existing phone lines and connected ISDN services.


In 2025 the PSTN is being Switched Off.

The 2025 switch-off is happening because the infrastructure that has been used for traditional phone lines that a lot of us use on a daily basis, is getting retired.

And even sooner than that, in 2023, the ability to buy new or add to existing phone lines will no longer be available either. This means if you are in need of existing phone line-based services, get them sorted now. This is especially worth keeping in mind if your contract renewals are coming up soon. It’s worth remembering that any new phone lines before 2023 are only temporary fixes. they will still become inactive in 2025 with the shutoff.

It’s not only phone lines that are going to need replacing, because the PSTN (Public Switched Telephone Network) technology supports other services/devices, such as the ISDN (Integrated Service Digital Network). This would include your Broadband/Wi-Fi if your Broadband is supported by a single analogue line, meaning you could find yourself without internet.


Potential Impacted Services/Devices

  • Phone lines/Telephones
  • Fax Machines
  • Broadband/Wi-Fi
  • Devices that depend on Wi-Fi (such as tablets/laptops)
  • Alarm Lines
  • Payment Terminals
  • Security Cameras

If you use any of these devices, you’ll need to find out whether they’re IP-compatible from the manufacturer. They’ll need to be replaced if your devices aren’t IP-compatible.


PSTN, ISDN 2025 Switch Off  Solutions

There are a variety of options to choose from to make sure you keep your business connected when the 2025 Shut Off happens. Here are a few options you might want to look into:


A VoIP (Voice Over Internet Protocol) phone system is a cloud-based phone system ideal for businesses of all sizes.

It is a phone system that runs on internet technology and connectivity, technology like 4G, 5G, and fibre internet connections.

Make and receive calls where you want to, on your desk phone, computer or from your mobile when you’re out and about. Wherever works best for you.
Take your business communication up to the next level with a modern VoIP phone system. It does everything your old phone system can, with more flexibility. You could be anywhere in the world that has an internet connection.
VoIP can work over a SOGEA Business Internet Connection, which just provides the internet.


A SOGEA (Single Order Generic Ethernet Access) is an option that gives you broadband without the need for a phone line. It’s a close alternative to FTTC broadband and gives your business a fast, reliable connection without compromising on quality. You’ll need to get a separate hosted VoIP solution if you still need telephony services, due to SOGEA being provisioned on a single order.


If you need an even faster connection for your business, FTTP (Fibre To The Premises) is for you. FTTP makes use of only fibre cables, which means there will be no copper wires and therefore no drop in both speeds and quality.

Full fibre isn’t available all over the UK yet, but you can see if your business is in a full fibre-enabled area by using a postcode checker.


VoIP Phone Systems and Business Internet further information

If you want to find out more about the 2025 Shut Off and what the best solution for you and your company is. See information about Business VoIP Phone Systems

get in touch or book a free call with one of our team, which you can do from our home page. We’ll do our best to help you with whatever you need.

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