The PSTN Switch Off: Embracing the Future of Telephony

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The PSTN Switch Off: Embracing the Future of Telephony

The copper wire telephone network has been the backbone of communications since 1876. However, a significant change is on the horizon. In 2025, BT Openreach will switch off the Public Switched Telephone Network (PSTN), requiring everyone to transition from PSTN-based services to alternative solutions.

The Future: Voice over Internet Protocol (VoIP)
The primary alternative to PSTN is Voice over Internet Protocol (VoIP), a technology that transmits voice calls and data using an internet connection. This switch marks a major step towards the United Kingdom’s mass IP-network migration, with VoIP core networks set to replace all legacy PSTN services in just a few years.

Embracing the Future of Telephony
To stay ahead of the curve, consumers should consider replacing their landlines with VoIP before the PSTN switch-off in 2025. This transition will ensure uninterrupted communication and provide access to the numerous benefits of VoIP technology, such as cost savings, increased flexibility, and advanced features.

Interactive PSTN Stop Sell Map – Priority Exchanges
Openreach is working in parallel to switch off the PSTN network and roll out their fibre broadband network. To expedite this transition, they have identified and published a list of Priority Exchanges throughout the British Isles, focusing their efforts on rolling out Fibre-to-the-Premises (FTTP).

When FTTP is available to more than 75% of properties within the catchment of an exchange, Openreach will move to Stop Sell with WLR products. This means that businesses and consumers will need to move to an IP service for new orders.

November 2017

BT Openreach announces its intention to switch off the PSTN in 2025.

December 2020 – Salisbury Stop Sell

Customers in Salisbury cannot purchase new ISDN lines or add new features.

October 2021 – 169 Exchanges Stop Sell

Customers across 169 locations cannot purchase new ISDN lines or add new features.

April 2023 Salisbury and Mildenhall End of Life process begins

Customers using the PSTN network in Salisbury and Mildenhall will have reduced service leading to a complete cease of service.

September 2023 – UK Stop Sell

Customers across the whole country cannot purchase new ISDN lines or add features.

December 2025 – UK End of Life

The PSTN network is completely switched off across the UK.

The PSTN switch-off in 2025 marks a significant shift in the world of telephony. By embracing VoIP technology and staying informed about the Priority Exchanges and Stop Sell dates, businesses can ensure a smooth transition and continue to enjoy reliable communication services in the future. 

Contact us today for a seamless transition for your business.