Beyond ISDN: Are you ready?

Beyond ISDN: Are you ready for 2025?

With ISDN permanently switching off in 2025, time is running out to re-evaluate your organisation’s communications systems.

Change is constant in the world of telecommunications. Adaptability is the key to staying ahead. One of the most significant shifts on the horizon is the phasing out of Integrated Services Digital Network (ISDN) services in Europe by 2025.

A recent survey of IT leaders conducted for CloudClevr found that 44% of organisations could still be affected by this change. As this traditional technology disappears, these businesses must embrace the opportunities presented by modern connectivity solutions.

In this article, we’ll explore the implications of the ISDN switch-off and how companies can redefine their connectivity for the post-2025 era.


Farewell ISDN

ISDN has been a reliable telecommunications workhorse for decades. It facilitated voice and data transmission over digital lines, making it a go-to choice for businesses worldwide. However, technology evolves rapidly, and ISDN has become a relic of a bygone era. There are three reasons for this:


  • Limited bandwidth – Compared to modern alternatives such as fibre optics and high-speed broadband, the bandwidth ISDN offers is limited. It can’t meet the data-intensive demands of today’s digital-first world
  • Analogue – ISDN is fundamentally analogue while modern alternatives are digital, making them more flexible and scalable
  • High maintenance – Maintaining ISDN infrastructure is expensive, with replacement parts becoming scarcer. In the long run, it’s not economically viable to keep ISDN going

So, in 2025, BT will switch it off (along with the Public Switched Telephone Network), meaning consumers and businesses will need to move to IP-based voice communication.


Connectivity after 2025

As ISDN phases out, businesses must adapt to the new connectivity landscape. Here’s how they can redefine their communications operations for the post-2025 era:


Switch to VoIP and UCaaS

Voice over Internet Protocol (VoIP) and Unified Communications as a Service (UCaaS) are the new standards for voice and data transmission. They offer flexibility, scalability and cost-efficiency. Businesses should transition their communications to these cloud-based solutions as a matter of urgency.


Invest in high-speed internet

High-speed internet connectivity is the backbone of modern business operations. Invest in reliable, high-speed internet services like fibre optics or business-grade broadband to ensure seamless communication and data transfer.


Explore SD-WAN solutions

Software-Defined Wide Area Network (SD-WAN) solutions optimise network traffic, enhance security and improve connectivity performance. They are essential for any business with remote or distributed teams.


Prioritise cybersecurity

With increased connectivity comes increased vulnerability to cyber threats. Make cybersecurity the centre of your communications strategy, prioritising measures to protect data and comms channels.


Leverage cloud services

Cloud computing and storage solutions enable businesses to access their data and applications from anywhere, enhancing flexibility and scalability. They’re essential components of modern connectivity.


Plan for scalability

As your business grows, your connectivity needs grow too. Plus, technology never stands still; you never know what capabilities are around the corner. Plan for scalability to accommodate future growth and technological advancements.


Seek expert guidance

Navigating the post-2025 connectivity landscape can be complex. Seek expert guidance from people with the right knowledge and experience to help you.

At CloudClevr, we can support you at every stage of your transition with our expert consultancy service. Trust CloudClevr to understand your business needs and recommend the best services to drive growth within your organisation.


Let’s get started

The ISDN switch-off marks the end of an era, but also the start of a new one. Embracing modern connectivity solutions is not just a necessity but an opportunity for businesses to thrive in the digital-first age. It’s time to redefine your connectivity for the post-2025 era and gain a competitive edge in an ever-evolving telecommunications landscape.

At CloudClevr, we believe it’s time to make technology smarter. Our vision is clear: a world where all your technologies work together seamlessly to create measurable business value. We make technology simple – so you can purchase, implement, flex and securely manage your tech estate with confidence.

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