
Find the Right VoIP Business Phones for the BT PSTN Switch Off
ISDN stands for Integrated Services Digital Network, a legacy telephony solution that allowed voice and data signals over the same line. It was once a popular choice for businesses due to its faster speeds compared to basic lines. However, with ISDN being phased out, businesses must transition to VoIP telephone systems and modern business telephone systems to maintain seamless communication.

Why is ISDN Being Switched Off?
Broadband internet speeds are now significantly faster and more reliable than ISDN. Traditional ISDN lines also limit flexibility, tying businesses to physical locations. Moving to cloud-based solutions offers greater scalability, supports remote working, and enhances efficiency. VoIP telephone systems provide a cost-effective and adaptable alternative, ensuring your business can thrive in the digital era.
Things to consider choosing your phone system
With nearly 30 years of experience, we have helped businesses navigate every type of VoIP telephone systems transition. Our team is well-equipped to support you through the Openreach PSTN switch-off and ISDN shutdown. The ISDN phase-out began in 2020, with the BT PSTN switch-off accelerating through 2023, leading to a full shut down by 2025. We provide tailored VoIP Business Phones for companies of all sizes, from small businesses to large enterprises. Choosing the right business telephone system now will future proof your communication infrastructure and ensure long-term success.
Contact our experts today to see how we can help you prepare and migrate away from PSTN.
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How can VoIP Experts help me?
We have you covered, with a vast array of skills and services at our disposal, along
with decades of experience, we offer connectivity to suit your business needs.
Our customers love us
Working in buildings which cater to an assortment of clients from varying sectors who are all trying to run businesses, means it’s a necessity to have phone systems which are not only top quality, but from a source we can fully trust. Thankfully, with VoIP Expert, we have found just that.
We have been using the VoIP phone and answer phone system for around 6 months now without any issues with service. When our customers ring the greeting and options sound very professional. We at body perfection laser clinic highly recommend this system 10/10
We've been using the VoIP system in our offices for a little over a year now and find that it has really enhanced all communications throughout our business, making it easier to keep up with clients and staff. Also, the team who maintain the phones are helpful and always available when we need them. Would truly recommend to all business'.
Working in the Insurance industry, we are constantly in need of consistent communications with both our team and clients. Thankfully using VoIP Experts have given us exactly this and the versatility to do so from almost anywhere and seamlessly. Thanks, guys!
Our clients are at the forefront
So many businesses have already chosen flexibility and simplicity with VoIP Experts
and these are just a few of them:
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