Openreach has confirmed that the UK's legacy public switched telephone network (PSTN) will be officially retired on January 31, 2027, and that the deadline will not be postponed, potentially affecting households and businesses still using analogue phone services.
The infrastructure arm of BT Group issued the warning this week in a letter to communications providers that use its network, informing them that any customers still on legacy PSTN connections risk disruption when these are shut down at the end of January.
The switch-off is part of a wider government scheme to move the UK onto all-digital high-speed networks running on fibre-optic infrastructure. Many households have already abandoned landline handsets in favour of mobile phones, but those who still want a landline must plug the phone into the back of a broadband router to use a Digital Voice service.
Beyond plain old telephones, systems that rely on PSTN connectivity include point-of-sale terminals, fire and security alarms, and personal care alarms for elderly and vulnerable people. Openreach has been planning the move for the best part of a decade and has already pushed back the deadline at least once after the government asked providers not to force vulnerable customers who use systems such as TeleCare to switch until fixes are in place.
Public awareness seems low that analogue phone services will soon be disconnected. Telecoms analyst Paolo Pescatore at PP Foresight said: "Openreach and all providers need to coordinate a much more cohesive campaign that reaches customers directly," he said. "TV, billboards and newspaper advertising should reinforce a consistent message, supported by targeted letters, calls and door-to-door support for older and vulnerable people who need extra help." He added that providers must take responsibility for ensuring people remain safely connected, especially those who rely on their landline or a care alarm.
Caroline Abrahams, charity director at Age UK, agreed. "With only three months to go, the digital landline switchover is entering a critical final phase," she said. "Most people have moved over without major problems, but nobody who relies on their landline or TeleCare should be left behind." She added that providers must not give up on people who have not responded, and need to keep trying to reach them and offer practical, individual support, recognising that some may be unwell, living with dementia, worried about scams or without anyone nearby to help.
Openreach has a webpage with information about the switch-off and advises consumers to call their service provider as soon as possible to ensure service is not interrupted. The company previously told The Register that customers without a fibre connection will likely be switched to SOTAP for Analog (Single Order Transitional Access Product), where equipment is installed in the local telephone exchange to allow them to continue to use their old phone line as before.
Openreach has warned that commercial customers delaying migration risk significant disruption and unnecessary costs. "Businesses and organisations that delay action are making things harder for themselves," said James Lilley, Openreach Director of All-IP. "The straightforward migrations have largely been completed. What's left are the complex connections that underpin critical operations, requiring careful planning, supplier coordination, and thorough testing." He urged businesses to act now, audit their remaining analogue services, and work with their communications provider on a migration plan today.
Earlier this year, the firm announced it was stepping up its charges to service providers and companies still operating legacy business lines, who will by now be paying double the rental cost compared to last year.
Analysis
Why This Matters
- Hundreds of thousands of households and businesses still rely on analogue phone lines for alarms, care systems, and point-of-sale terminals, and face disruption if they have not migrated by the deadline.
- Vulnerable and elderly people who use personal care alarms (TeleCare) risk losing a critical safety link if their provider has not switched them over or if they are unaware of the change.
- The switch-off marks the final phase of the UK's transition to an all-fibre digital network, ending the era of copper-based telephone service.
Background
For nearly a decade, Openreach has been planning the retirement of the Public Switched Telephone Network (PSTN), the copper-cable system that has carried voice calls for over a century. The move is part of a government-backed push to replace the UK's ageing telecoms infrastructure with fibre-optic broadband. The deadline was previously extended after concerns that vulnerable users of TeleCare and other analogue-dependent services were being left behind.
Key Perspectives
Openreach: Says the deadline is firm and will not be extended; warns that businesses delaying migration face disruption and higher costs, and that the remaining migrations are complex and need careful planning.
Paolo Pescatore (PP Foresight): Says public awareness is low and that providers must run a more cohesive campaign using TV, billboards, newspaper ads, letters, calls and door-to-door support for older and vulnerable people.
Caroline Abrahams (Age UK): Says providers must not give up on people who have not responded, and must offer practical, individual support, recognising that some may be unwell, living with dementia, or worried about scams.
What to Watch
- Whether providers ramp up outreach to vulnerable customers in the final three months, especially those using TeleCare.
- The volume of last-minute migration requests and whether Openreach has sufficient engineering capacity to handle them before January 31.
- Any government intervention if public complaints or reports of disconnected care alarms escalate close to the deadline.
Checked
12 claims in this story checked against 1 source: 12 supported.
Show each claim
- SupportedOpenreach says the UK's legacy phone network will be switched off on January 31, 2027.www.theregister.com - Articles: “Openreach has issued a stark reminder to customers that the legacy phone network is being officially switched off on January 31”
- SupportedOpenreach says the switch-off deadline will not be postponed.www.theregister.com - Articles: “and says the deadline will not be postponed.”
- SupportedOpenreach warns the deadline will not be extended and urges businesses to act now.www.theregister.com - Articles: “Openreach has issued a stark reminder to customers that the legacy phone network is being officially switched off on January 31, and says the deadline will not be postponed.”
- SupportedOpenreach circulated the warning this week in a letter to communications providers using its network.www.theregister.com - Articles: “The infrastructure arm of BT Group, Britain’s biggest telecoms biz, circulated the warning this week in a letter to comms providers that use its network to deliver their services.”
- SupportedCustomers still on legacy PSTN connections risk disruption when they are retired at the end of January 2027.www.theregister.com - Articles: “It informs them that any customers still on legacy public switched telephone network (PSTN) connections are at risk of disruption when these are retired at the end of January, 2027.”
- SupportedThe switch-off could affect businesses and consumers alike.www.theregister.com - Articles: “The switch-off could affect businesses and consumers alike.”
- SupportedThe switch-off is part of a government scheme to move the UK onto all-digital high-speed networks running on fibre-optic infrastructure.www.theregister.com - Articles: “The move is part of a wider government scheme to get the UK onto all-digital high-speed networks running on fiber-optic infrastructure”
- SupportedOpenreach has pushed back the deadline at least once after the government asked providers not to force vulnerable TeleCare users to switch until fixes were in place.www.theregister.com - Articles: “It has already pushed back the deadline at least once, after the government asked telecoms providers not to force vulnerable customers who use phone-network systems such as TeleCare to switch until fixes are in place.”
- SupportedPaolo Pescatore said providers should coordinate a more cohesive campaign reaching customers directly.www.theregister.com - Articles: “"Openreach and all providers need to coordinate a much more cohesive campaign that reaches customers directly," said telecoms analyst Paolo Pescatore at PP Foresight.”
- SupportedCaroline Abrahams said the digital landline switchover is entering a critical final phase with three months to go.www.theregister.com - Articles: “"With only three months to go, the digital landline switchover is entering a critical final phase. Most people have moved over without major problems, but nobody who relies on their landline or TeleCare should be left behind," she told us.”
- SupportedJames Lilley said businesses delaying action are making things harder for themselves.www.theregister.com - Articles: “"Businesses and organizations that delay action are making things harder for themselves," said James Lilley, Openreach Director of All-IP.”
- SupportedService providers and companies still operating legacy business lines are paying double the rental cost compared with last year.www.theregister.com - Articles: “Earlier this year, the firm tried to drive home the message by announcing it was stepping up its charges to service providers and companies still operating legacy business lines, who will by now be paying double the rental cost compared to last year.”