PSTN Switch Off 2025

We offer a range of great-value Business Digital VoIP options below:

The PSTN Switch-off is coming. If you are still running your telecoms on ISDN or Analogue lines, it's important to start planning for the future.

Or, if your current telecoms system is not meeting your needs for any reason, it is worth reading on to check-out what is available on the Aspire Cloud Platform. Our Digital VoIP systems are leading the way!

Get modern, innovative, robust telecoms services, and save money too!

What you need to know:

2025 - Is the PSTN switch-off.

£720/m - Represents potential savings, based on 60 ISDN channels!

Zero - Disruption of day-to-day operations during installation and setup.

5 minutes - Average time to onboard a staff member on to Aspire Cloud Telecoms system.

Digital VoIP is a great choice for businesses of all sizes. Take advantage of our cutting-edge platform, make efficiencies, save money and get much more out of your communications. You don't need to wait till the 2025 PSTN Switch off.

Ready to make the switch?

We at Aspire are ready to help you navigate your way through the PSTN Switch-off.

Contact us to explore options and ensure a seamless transition into the digital era.

Keep reading to find out more about Aspire Cloud Telecoms...

"From start to finish the process was simple and most importantly stress free. The impact on the day to day business was minimal and the outcome exceeded our Q2 expectations. Full marks."

Marcus Bellmarsh - Managing Director / OMRON Telecoms

"Aspire have always catered to our requirements and provide a speedy and efficient response and high standard of service"

Client in Cheadle, Greater Manchester

"I have been using Aspire to look after my IT services and dialler technology for the last 2 years and I have seen a massive increase in productivity, the support is the best I have ever come across so friendly and knowledgeable. I would recommend using Aspire above anyone else I have used in the past"

- Peter James

Is your business prepared for the impending Big Switch-off?

What exactly is the PSTN Switch-off?

It started on the September 5th, 2023, BT Openreach ceased offering new services on the Public Switched Telephone Network (PSTN), marking a significant milestone in transitioning to modern technologies.

This kickstarted the phase-out process, culminating in the complete PSTN switch-off scheduled for the end of 2025.

This stop-sell means that from September 5th, 2023, BT Openreach discontinued the provision of new PSTN-based services.

Existing legacy PSTN services remain functional until the complete switch-off in 2025.

However, no new services can be purchased or alterations made to existing ones reliant on ISDN or PSTN during this phase.

What is the modern alternative?

As businesses adapt to the evolving landscape, many are embracing Voice over Internet Protocol (VoIP) technology.

VoIP facilitates calls and data transmission over the internet, offering an opportunity to transition to an all-digital solution and fortify businesses for the future.

The decommissioning of PSTN lines marks a monumental technological shift, but the transition need not be daunting; although meticulous planning is essential.

However, you don't need to go it alone. We have performed this transition successfully for countless companies already. Many with very complicated telecommunications setups.

You have a range of options:

Contact centre office
APEX Contact Centre Platform

Enterprise solution for call centres and telesales teams. Next generation call centre and dialler technology so you can drive sales and focus on what's important - your customers.

Great if you need:  to make and manage large volumes of outgoing or incoming calls.
Video conferencing business office
3CX Business Communications

Modern business communications features including video conferencing and web chat facilities.

Great if you need:  video, and integrated internal team communications.
Man using laptop and phone
Aspire Cloud PBX

Fully featured telecoms, perfect for businesses of all sizes. With features like ring groups, conference rooms and call recording, you will be able to stay connected and compliant with ease.

Great if you need:  a budget conscious phone system that has all the modern features for any business.
ISDN to VoIP Gateway
ISDN to VoIP Gateway

Integrate your existing phone systems with modern VoIP technology. You can switch over to VoIP and keep your on-premise PBX system and handsets by using an Aspire ISDN to VoIP Gateway.

Great if you need:  to keep your existing telecoms system.
Team working together
MS Teams and CRM Integrations

Increase your team efficiency and customer satisfaction by integrating your phone systems to Teams, CRM and other software.

Great if you need:  bespoke development to meet the demands of your workflow and growth goals.

View our Telecoms Systems page to compare your options.

It's easy to switch! Straightforward, no-downtime onboarding

We ensure to keep your communications live during transition and also future-proof your communication setup for a more efficient service for your staff and customers moving forward.

Be aware, that staying with your current provider might not be the most economical decision.

Not only can we carefully and seamlessly move over the most complicated of setups, but we can also save you a substantial amount each month.

For more details on our business cloud solutions, consult with our specialists.

Frequently Asked Questions (FAQ)

Here are some frequently asked questions about the PSTN Switch-off:

When does the PSTN Switch-off commence?

The process began on September 5th, 2023, with BT Openreach's national stop-sell of PSTN services.

When will the PSTN be shut down completely?

BT Openreach plans to phase out the traditional analogue telephone network entirely by 2025.

Why is the PSTN shutdown happening?

The PSTN has been serving as the UK's telecommunications infrastructure since the 1800s. To maintain and upgrade the system has become too inefficient and expensive. With new technology available, BT Openreach aims to transition to a fully digital network to meet the demands of the new era.

How does the PSTN Switch-off impact my business?

Businesses relying on PSTN and ISDN services need to transition to the new network by 2025 to sustain their communication services.

As you can imagine 1000s of businesses will need to make the transition over the coming months with a limited number of provider slots available. Don’t leave it too late, as you may not have a working phone system come the end of 2025 which could disrupt your business operations.

When should businesses switch their services from the PSTN?

Start planning now. Speak to Aspire to discuss your system requirements and we will commence the required preparations to ensure you have a smooth transition.

Do I need phone and broadband?

You will need a robust broadband and modern VoIP systems to handle the new digital communications technology. We will advise you on the right tech package for your needs.

What is VoIP?

Voice over Internet Protocol (VoIP), is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular analogue phone line. It is far superior to PSTN and ISDN in call quality and cost effectiveness. VoIP enables modern features such as video conferencing, work-from-anywhere, mobile telephony and more.

Will I still be able to make emergency 999 calls?

Things will change but your access to emergency services and important phone numbers will be included in your VoIP setup. Telecoms providers are legally obliged to ensure emergency call access is available.

Ready to make the switch?

We at Aspire are ready to help you navigate your way through the PSTN Switch-off.

Contact us to explore options and ensure a seamless transition into the digital era.

PSTN/ISDN discontinuation by 2025: Your Phone System's Next Steps

Substantial savings await through VoIP

Farewell, line rental! ISDN circuits typically charge line rental per channel - having 60 channels could cost as much as 60x £12 = £720 per month.

This substantial sum could be saved by your business each month.

Call costs

Have your call costs decreased annually in line with falling wholesale pricing?

Many companies tied to long-term ISDN contracts often endure high rates for telephone calls.

We offer significant savings on VoIP calls by providing updated call rates, especially for high-usage businesses.

Understanding PBX

PBX stands for Private Branch Exchange, an internal private telephone network used by businesses to make and receive calls and transfer data between PBXs.

It's a crucial part of any business communication setup that requires careful planning and management.

Do you possess an onsite PBX System?

If your onsite PBX functions impeccably and satisfies your needs, parting with it might not be ideal.

However, hosted VoIP could be an alternative worth considering, even with a functional onsite PBX. VoIP offers advantages such as increased flexibility, scalability, and cost-savings. With a hosted VoIP solution, you can retain your existing PBX while benefiting from VoIP advantages, saving costs and avoiding the hassle of replacing your entire telephony system.

You can utilise an ISDN to VoIP Gateway device to continue using your current PBX system, making calls over the internet via a VoIP account. This way, you enjoy savings on Line Rental and Calls while using existing handsets, minimising staff disruptions during installation and training for a new system.

Advantages of a cloud-hosted PBX system

Ready to adopt the next generation of PBX technology by hosting your PBX service in the cloud?

This offers dual benefits: you eliminate the need to power and maintain onsite PBX equipment while gaining access to modern PBX features such as Video Conferencing, Company Chat, CRM integrations, Smartphone Apps, Desktop apps, and more.

Like any network device, there comes a time for upgrading older technology, especially valuable in modern workplaces where employees engage in hybrid working and require efficient call management.

When to conduct your ISDN/PSTN switch-off?

You can retain your existing telephone numbers by porting them from your ISDN circuit to your new VoIP account. Number porting is possible only while the ISDN circuit is operational, so refrain from cancelling your ISDN circuit before completing number porting to your new VoIP provider.

The porting process is straightforward, involving a porting form confirming the change in hosting provider for your telephone numbers. Once submitted, we'll provide a date for transferring number hosting, typically within 2 to 3 weeks.

Streamlining the process - organising a smooth ISDN/PSTN end-of-life transition!

We understand this may seem complex and represents a significant decision for your business. Telephone connectivity is vital to most businesses, so uninterrupted service is crucial.

Your VoIP account can operate alongside existing ISDN circuits, with engineers managing the transition between ISDN and VoIP onsite in most cases, ensuring zero interruption to business operations.

Whichever path you choose for the VoIP switch, we can oversee the process from start to finish. It all begins with a free consultation with our telecoms experts.

Need-to-know information:


Marks the switch-off year!!


Represents potential savings, based on 60 ISDN channels!


Disruption of day-to-day operations during installation and setup.

15 minutes

Average time to onboard a staff member on to using the new telecoms system.

Ready to make the switch?

We at Aspire are ready to help you navigate your way through the PSTN Switch-off.

Contact us to explore options and ensure a seamless transition into the digital era.