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Time is running out…

The ‘BT ISDN Switch Off’, will be a biggest shift in the way people make phone calls in the UK in recent history.

The official switch off will happen in 2025.

For business continuity, it is vital companies take action now to ensure they are prepared for the official switch off that will happen in 2025.

BT announced back in 2015 they will shut off their ISDN and PSTN services completely in 2025. Neither of these technologies can deliver the volume or quality of voice data needed in a world where digital technology is such a priority.

From 2025 all voice calls will be made over the internet.

According to the “Switch On to the Switch Off Survey 2021”, 83% of organisations were still not aware of when their services would be switched off.

The Switch Off is fast approaching and your business cannot afford to delay on upgrading.


What will it affect?


The change affects both your telephone services and even some internet connection (Fibre To The Cabinet FTTC, ADSL2+). If you are unsure what services you have speak to us (HBT Communications) who for 35 Years have been helping SME organisations with consultative and impartial advice.


We can help your business through this change / transition of services.


You will make savings by changing over, no more call charges to UK Landline, UK Mobile, Non-Geographic numbers and even free international calling. No more expensive maintenance/service contracts


  • HBT will save your business money
  • HBT will increase efficiency


Getting ahead means getting with VoIP


The best way to avoid disruption during switchover in 2025 is by getting the process started, sooner rather than later. Then you won’t have to wait to experience a wide range of benefits, which include:

No hardware to worry about

With VoIP, everything is managed through an app on your computer and/or mobile device – that means there are no installation or hardware purchase costs, even if you add new lines or move to new offices.


It’s not just during a global health crisis that VoIP supports your business. When your team is free to work from anywhere — back at the office, in a co-working centre, or even while on the move – you have maximum flexibility, and they can even use their own device.

Upgrade flexibly over IP too

The latest VoIP solutions are available completely ‘as a service’ — offering completely scalable, transparent, and up-to-date solutions as your needs evolve. With VoIP phones delivered as desktop or mobile software applications, everyone can take advantage of the latest updates and improvements, to enjoy the best user experience and security features.

How can we help?

HBT Communications have been in the communications sector since 1988 and cover all the UK. Our support team are based centrally from our Coventry Head Office and our consultants have over 60 years combined experience in delivering the best of breed solutions and ensuring that these are delivered in the most cost-effective way.

Contact us today to discuss how we can help you.

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