With the traditional phone line switch off looming, businesses must make the move away from outdated technologies. Focus is now placed on modern solutions for business phone line options.

Traditional phone lines and the switch off
Traditional copper phone lines, also known as PSTN and ISDN, have been the foundation of business communication in the UK for decades. However, technology has advanced. The traditional business landline phone has become obsolete. Not only that, but maintaining a copper infrastructure is costly, inefficient, and unable to match the demands of modern connectivity.
That’s why traditional phone lines are being switched off.
The UK’s telecom providers are phasing out copper-based networks. A complete switch off, which has previously been delayed, is currently scheduled for 2027. This shift from landline phones for business paves the way for more advanced, affordable digital communication solutions.
For any business that still relies on a traditional business landline phone service, it’s time to act – and fast. The future lies in digital alternatives, which offer greater flexibility, scalability, and reliability.
Read our in-depth blog to learn more about the ISDN and PTSN switch off.

Cloud-based phone systems: The future of communication
With the search for alternative business landline phone options well underway, one pick has emerged as the go-to solution: cloud-based phone systems.
Instead of relying on physical infrastructure, a cloud-based phone line for business utilises VoIP technology to transmit voice and data over the internet. Forget about the need for bulky hardware and complex maintenance. The shift to the cloud enables a flexible, efficient, and future-proof business phone line system.
To highlight why internet phone lines for business make sense, here’s a quick rundown of the benefits of these systems:
- Scalability: Easily add or remove lines to match business growth.
- Cost-effective: Reduce hardware and maintenance costs.
- Flexibility: Support remote work with mobile and desktop integration.
- Advanced features: Access voicemail-to-email, call analytics, video conferencing, and more.
- Reliability: Guarantee uninterrupted service with cloud-based backups and failover options.
- Future-proof: Stay ahead of the curve with a modern system built for evolving business needs.
These phone lines for business don’t simply address the limitations of outdated copper networks. They also unlock opportunities for increased efficiency, collaboration, and cost savings.
Wondering how to set up a business phone line with cloud technology? Learn how Radius can help with our cloud-based phone system solutions.

Seamless connectivity: Upgrading to fibre broadband
When setting up a business phone line after transitioning from a traditional setup, there’s one key step to take: upgrading to fibre broadband.
Fibre broadband supplies the high-speed, reliable internet connection required to support modern communication systems. Without it, systems like VoIP and cloud-based solutions could struggle to achieve uninterrupted reliability. With faster download and upload speeds, fibre equals smooth voice calls and continual video conferences.
That’s not all. A business phone service with fibre offers superior scalability. For instance, say a startup business is faced with increased data demands as it grows. By upgrading their fibre broadband needs to match these demands, their small business phone lines remain fully functional. Add in the highly resilient nature of fibre, and you can benefit from minimal downtime and consistent performance – even during peak usage times.
To see how your business phone line installation can be enhanced with this internet solution, visit our business fibre broadband page.

Additional business phone line solutions
There are various options you can explore when getting a new business phone line. Here are two additional solutions that can further upgrade digital phone lines.
SIP trunking: enhance your VoIP system
SIP trunking is a cost-effective solution for any company transitioning to VoIP systems. It replaces a traditional business line phone by enabling voice calls over the internet. By utilising this technology, you can scale with ease, add new lines, and support remote workforces without major infrastructure changes.
Learn more by visiting our page on SIP trunking.
Leased lines: dedicated internet for businesses
Leased lines give businesses the advantage of a dedicated, high-speed internet connection for consistent performance. Unlike shared connections, leased lines deliver on symmetrical upload and download speeds.This makes them an ideal fit for data-heavy operations, such as video conferencing and VoIP solutions. Say your business relies on video conferencing and VoIP solutions. With unmatched reliability and no contention from other users, leased lines guarantee uninterrupted connectivity.
Learn more by visiting our page on leased lines.
How to get a business phone line with Radius
Radius offers tailored communication solutions for your needs. As we work with leading business phone line providers, UK companies can enjoy the best in connectivity and reliability. Whether you’re wondering what solutions are best for your needs or how much does a business phone line cost, get in touch today. We can make your transition from traditional phone lines a seamless, cost-effective one.
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