Is your business set for the PSTN switch-off 2025?

The clock is ticking. The deadline for the BT PSTN switch-off is fast approaching, and those who fail to prepare risk disruption to their business. Don’t wait until the last minute to make the switch. Explore our range of voice and business internet solutions today.

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What is the PSTN switch-off 2025?

The PSTN switch-off is the process of retiring the legacy copper-based Public Switched Telephone Network (PSTN) and Integrated Services Digital Network (ISDN). As BT Openreach is responsible for the majority of telephone lines in the UK, it’s also referred to as the BT PSTN switch-off or the analogue phone line switch-off.

This means that traditional phone lines will no longer be available, and all calls will be transmitted over the internet using VoIP technology. This marks a fundamental change in how UK businesses communicate.

When in 2025 is the switch-off happening?

The analogue phone line switch-off process has already started. Several BT Openreach exchanges already have a stop-sell in place, meaning you can no longer buy services like FTTC (Fibre to the Cabinet) and ISDN (Integrated Services Digital Network). In 2024, several exchanges will be switched off with the full PSTN/ISDN switch-off being completed in 2025. Now is the time to act to avoid interruptions to your business.

Why should you make the switch now?

As we approach the full switch-off date, the demand for PSTN or ISDN replacement services will increase, suppliers will be inundated, and the backlog will grow. Don't wait until the last minute to make the switch if you want to stay connected and keep your business phone numbers. By acting now, you can avoid service interruptions, maintain productivity, and get all the benefits of modern, digital communications sooner rather later.

Why you need to get ahead of the queue for the PSTN switch-off

Our guide explains the PSTN switch-off 2025 and how to ensure your business remains seamlessly connected in the new all-IP era. Learn about the benefits of modernising your business communications now in this guide.

Read the guide

Understanding VoIP phone systems: what are the benefits?

Learn how VoIP technology improves communication for businesses, offering flexibility, new features, and cost savings. Read on to see how VoIP phone systems benefit your business.

Read the guide

Your business broadband options: What is SoGEA?

SoGEA broadband is revolutionising the way SMEs access the internet. With its increased speed, improved reliability, and fast setup, SoGEA is keeping businesses connected after the PSTN switch-off. Find out how in this guide.

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Your PSTN replacement options

All-in-one PSTN replacement bundle

Gradwell’s PSTN replacement bundle is a purpose-built solution for SMEs that includes a VoIP phone system, hardware, and connectivity. The package offers a fast upgrade from PSTN to VoIP, guiding you to an all-IP solution with no disruption. 
Wherever individual solutions such as VoIP or Business Broadband may be more effective, we’ll always help you find the best option to suit your business. 

VoIP Phone Systems

Phone systems connected via the landline network will no longer work after the switch-off. Voice Over IP (VoIP) phone systems are the modern alternative, enabling phone calls via the internet. Choose from a range of options, like the PC Pro recommended phone system, Wave, Microsoft Teams Direct Routing or 3CX.

SIP Trunking

SIP trunks enable voice communication over the internet without the need for PSTN lines. With the switch-off imminent, SIP trunks serve as an alternative, enabling businesses to make and receive calls digitally.

Business Internet

Services like FTTC and ADSL are being phased out in the BT Openreach switch-off. Get your business future-proofed with an FTTP (Fibre to the Premises) or SoGEA connection to ensure your business stays online beyond 2025.

Business Mobile

Gradwell can provide a range of deals across the leading networks and ensure the best coverage wherever you’re based. With competitive pricing and the ability to cater for both simple and complex needs, Gradwell Business Mobile could be the ideal PSTN replacement solution.

Why choose Gradwell?

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“The service has been consistently good and overall, an amazing experience. They make sure they always understand what they are being asked and come back with a relevant answer in a timely fashion..”

Nick Van Dorp

Technical Programme Lead, Wiltshire Health and Care

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“I would recommend Gradwell Wave to other SMEs who are looking for a good value for money phone system.”

Seb Murray

Farm & Project Manager, Pennywell Farm

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“Gradwell were attentive and on the ball throughout the implementation. This really was one of the best IT service experiences I have had in my whole career.”

Carl Wood

Network & Infrastructure Manager, Royal Air Forces Association

All-IP experts

Gradwell have been champions of the SME market since our inception 25 years ago when we launched the UK’s first VoIP services. Our customers are all on IP services already, so we have a huge amount of experience with this technology, meaning we can help more SME’s make the move to future-proofed solutions.

Superior customer support

We are proud of our market-leading support and deliver outstanding service to all our customers. Our Trustpilot score is rated as excellent, and our support team have an NPS score of 88. This, alongside the technology services we provide, makes us the ideal partner to guide you through the switch-off.

Our partnerships and accreditations

We partner with leading technology suppliers to provide SMEs with all the services needed to build modern, future-proofed business communications.

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fit to switch
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PSTN switch-off: frequently asked questions

Gradwell is here to help your business make the most out of the PSTN Switch-off.  Click here to speak to us via live chat if you have any other questions.

What is the PSTN switch-off, and how does it impact my business?

The PSTN (Public Switched Telephone Network) switch-off refers to the planned phase-out of traditional landline services. It‘s also referred to as the analogue phone line switch-off. For businesses, it means migrating from legacy, copper-based networks to modern, all-IP solutions. 

What are the alternatives to PSTN for my business communications?

VoIP and UC technologies leverage the power of the internet to transmit voice and data, offering more flexibility, scalability, and advanced features compared to traditional PSTN-based solutions.

How can my business prepare for the PSTN switch-off 2025?

Begin by conducting a comprehensive audit of your existing telephony infrastructure. Collaborate with your telecommunications provider to assess the compatibility of your systems with modern alternatives. Develop a migration plan that ensures a smooth transition without disrupting your operations.

What are the advantages of migrating to VoIP and UC solutions?

Migrating to VoIP and UC solutions brings numerous benefits, including cost savings, enhanced flexibility, scalability, and access to advanced features such as video conferencing, voicemail-to-email, and unified messaging.

Will the PSTN switch-off affect the quality and reliability of my business communications?

On the contrary, VoIP and UC solutions often provide superior voice quality and reliability. However, a successful transition requires careful planning and implementation. Work closely with your provider to ensure a seamless migration that meets your business's communication needs.