With BT’s upcoming withdrawal of traditional ISDN and PSTN phone lines, ensuring your businesses communications are futureproofed should be a priority.

In 2025, the ISDN switch-off marks the end of an era for traditional telephony. With the transition to modern communication systems, Barton Telecom emerges as your reliable partner to smoothly navigate this change. Offering expert guidance and advanced solutions, we ensure a seamless switch to cutting-edge technologies, empowering your business for the future.

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Why Should My Business Switch From ISDN?

From 31st December 2025, traditional ISDN & PSTN phone lines will be switched off.

Cloud-hosted telephony alternatives offer much more resilience than traditional phone lines.

Increased flexibility, allowing businesses not to be tied by physical locations.

What Are the Alternatives to ISDN & PTSN?

What will replace the traditional lines?

The two replacement products are SIP trunks or a cloud-based phone system. SIP trunks (Session Initiation Protocol) are phone lines that work down the internet and connect to your PBX (Private Branch Exchange). Cloud based phone systems are the way that most companies are now directing their telephony. The arrival of flexible working was a major reason that this turned into the preferred method. Cloud systems come with plenty of features included and don’t often require a large upfront cost.

Both methods require a fast, reliable internet connection.

How Do I Switch from ISDN?

You leave this to our team of professional, experienced VoIP engineers. Barton Telecom Services will deal with it all. A number port is required, which is the process of moving your existing phone numbers to an internet-based product. Our team of experts at Barton Telecom Services have over 25 years experience and are happy to arrange all of this for you.

Frequently Asked Questions

The switch off is the removal of the integrated service digital network (ISDN) and public switch telephone network (PSTN). All voice traffic will need to work through the internet (VoIP) by the end of 2025.

BT have announced that the switch off is due to take place at the end of 2025. The deadline is fast approaching so it’s worth starting to look at upgrading your traditional phone services sooner rather than later. The longer you leave it, the more risk you have of losing your phone service.

The answer is quite simple, everyone who is still running their telephony over the BT copper network is at risk of losing their services if they have not upgraded by the end of 2025. This includes all ISDN telephone lines and analogue lines. Don’t forget lines being used for fax, franking or PDQ card machines.

The ISDN / PSTN network is now outdated and it is becoming more expensive to maintain. VoIP (Voice over Internet Protocol) technology is far superior and more suited to current working requirements. The priority for Openreach moving forward, is to maintain a high availability full fibre broadband network.

All the services that you’re paying for should be listed on a bill from your supplier. Alternatively, get in touch with us and we can find out by looking on our portal.

About Barton Telecom Services

Trusted Telecom Solutions across Northamptonshire

Having provided businesses of all sizes with telephone systems for over 27 years, we’re experts in business telephone solutions. Our telecom engineers are fully trained to deal with any size of project, so if you require a single phone or 250 phones across numerous sites, our same high standards are applied across each and every project.

We specialise in all things VoIP (voice over internet protocol). Our cloud-based telephone solutions are the perfect for modern day businesses due to their flexibility, scalability, voice quality and advanced features. Plus, VoIP is a great alternative to traditional ISDN lines given that all ISDN/PSTN services will be fully switched off in 2025 (learn more around the ISDN switch off here).

We offer a range of VoIP products from trusted, industry leading suppliers including Yealink and Wildix. Given these services are entirely cloud hosted, it means that users only need an internet connection and a VoIP telephone to get started. PC Softphones and Mobile apps are included as standard within our packages, which makes remote and hybrid working arrangements seamless and easily manageable.

Your businesses telecommunications are reliant on a strong, fast, broadband connection. We’re proud to offer super-fast broadband at highly competitive prices. From FTTC and FTTP to leased lines & MPLS, Barton Telecom Services can provide your business with reliable connectivity with guaranteed speeds – all with dedicated engineers and ongoing support. Barton Telecom Services also provide new and refurbished on-site telephone systems, low cost lines and calls as well as business mobiles. So no matter the size of your business, we have a telecoms solution to help you achieve all of your connectivity goals.
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Our Recent Customer Feedback

Angela Daly
Angela Daly
2023-12-15
The team at Barton Telecom Services have been fantastic. They managed to get our phone and internet system up and running after we were let down by another company. I have no hesitation in recommending them to anyone looking for these services. Nothing is too much trouble, response time is extremely quick, it has been a pleasure working with a company who genuinely care about their customers.
beth moss
beth moss
2023-12-15
I wish that there were more than 5 Stars for this! Barton Telecoms have been amazing in helping us set up our new phone system and the support is just brilliant! i would highly recommend them!
Terry O'Connor
Terry O’Connor
2023-12-14
Having had the most appalling experience dealing with BT Local Business, I contacted Barton to assist in sorting out the problems. Absolutely brilliant service – all connected up and running within days, and very professional installation by their engineer Benjamin. Highly recommended!!
Sophia Asten
Sophia Asten
2023-12-13
Can’t recommend highly enough. The team at Barton are quick to respond and super helpful. Thank you guys!!
Jack Dormer
Jack Dormer
2023-12-13
Our recommended Telecoms supplier!
Hayley Shaw
Hayley Shaw
2023-12-13
Excellent service as always. Nothing is too much trouble!
Ray Farmer
Ray Farmer
2023-10-17
Quick to respond and very supportive thank you.
Jon Harvey
Jon Harvey
2023-10-12
Excellent end-to-end service and project management. I’d recommend Barton to anyone wanting an efficient customer focused telecoms solution.
Alex Rands-Allen
Alex Rands-Allen
2023-10-11
Great service and great phone system. Would highly recommend
Nigel Wilson
Nigel Wilson
2023-08-08
The team helped us replace a very expensive telephone system with a cloud based solution saving us ££££s Very happy thank you.