Openreach has called on UK businesses to speed up their migration to digital networks as the January 2027 PSTN switch-off deadline approaches.
With the transition now in its final phase, the company said that businesses and communications service providers (CSPs) still relying on legacy systems risk being left behind.
Openreach warned that many businesses continuing to rely on outdated PSTN infrastructure risk both their operational effectiveness and bottom lines.
As legacy networks are decommissioned, systems such as payment terminals, security alarms, ISDN systems and landline phones will cease to work, potentially leading to significant disruptions, it said.
James Lilley, director of all-IP at Openreach, said, “The nationwide transition to an all-IP network is a huge undertaking, and ensuring vulnerable users are protected during the shift has been a priority. Now that we are confident we have addressed those needs and can safely transition vulnerable customers, the deadline is set.
“It’s time for businesses to act and unchain their networks from legacy infrastructure. The digital world won’t wait for those that stall. Every day of delay risks disruptions, higher costs, and missed opportunities.”
Openreach said that the steps to make the transition are clear: review, test and switch. The company said that businesses should start by reviewing their connectivity estate to identify any equipment still relying on PSTN. Testing this equipment can be done for free at Openreach’s test labs, ensuring compatibility with all-IP networks. Finally, Openreach advised that businesses should switch to a digital solution as soon as possible.
Openreach is offering a range of resources to help businesses through the transition, including support for edge cases and temporary solutions if needed.
It recommended that businesses still unsure how they are impacted by the switch-off should contact their service provider.
The PSTN switch-off deadline is set for January 2027, although some CSPs have earlier dates including December 2025. Openreach said businesses that wait too long will face mounting costs, security risks and missed growth opportunities. It has urged all businesses to make the move today and take advantage of the potential of next-gen communication technologies.
Separately, Openreach has announced that it will be switching it the majority of its 24,000-strong fleet of vehicles to electric to meet its goal to be net zero by March 2031.
That includes a significant expansion of its charging network, with the company installing charging points at its operational sites and engineers’ homes, enabling overnight charging.