With the PSTN Switch Off first announced in 2017, the UK has been making headway into a full-fibre future. By 2027, all services known as part of the analogue WLR (Wholesale Line Rental) family will be terminated. These include standard lines, ISDN 2, ISDN 30, LLU, SLU and SMPF.
Progress Update
Progress Update
Understanding the Programme
PXC's All-IP Programme forms a key part of the UK-wide All-IP initiative, driven by the end-of-life of the PSTN network in January 2027.
To reduce migration volumes, a national WLR Stop Sell has been in place since September 2023, restricting new supplies, migrations and modifications where strategic alternatives such as SOGEA or FTTP are available.
All customers must migrate to IP-based services before the national switch-off at the end of January 2027.
ALL-IP Future
ALL-IP Future
Industry Information
All WLR, PSTN and ISDN services have to move, or be ceased as we move through the year. Openreach expect to see momentum building and not all services left until the end of the year.
Openreach have announced contractual changes, pricing increases and offers through 2026 to encourage people to move off these services.
Read more about Openreach's All-IP programme called the Big Switch Off and signup to their newsletter here
All-IP Programme
All-IP Programme
Our Approach
PXC's approach to the All-IP Programme is built on close collaboration with our key partners to fully understand their end-to-end WLR estate. This includes detailed analysis of both PXC-provided WLR and Third-Party WLR services, across voice-only lines and all data variants.
Working in partnership, we will segment each partner's WLR base and co-develop tailored roll-off plans that reflect their commercial, technical and operational dependencies. This partner-led approach ensures controlled, phased migrations and supports a successful withdrawal of all WLR services, with completion targeted by November 2026.
Future-ready Products
Future-ready Products
Explore the options
As we begin to retire legacy technologies and services now is the ideal time to understand more about what this means for you, your customers and the solutions available at PXC.
To understand which products are affected by these changes and the alternative solutions available click here.
Fallback Product
Fallback Product
Emergency Voice Access (EVAc)
Services that meet criteria, defined by Openreach, as of the end of January 2027 will be migrated onto a basic emergency voice service. This will be an extremely rudimentary telephony service that allows telecare devices to work but not much else. For instance, this service won’t support broadband services like SMPF.
We are currently working with Openreach to understand which customers will be eligible to move onto this product.
Openreach EVAc Trials:
The WLR3 EVAc (Emergency Voice Access) trial is designed to test an emergency over‑run product that preserves access to lifeline and emergency services for customers who have not yet migrated away from WLR3 ahead of final withdrawal. EVAc is intended as a last‑resort, voice‑only solution and delivers a reduced service compared to standard WLR3, with no broadband support, no SLAs or Autocomp, higher pricing, and an overall poorer customer experience than SOGEA or FTTP.
Openreach intends to run a limited pilot of WLR3 EVAc in Salisbury and Mildenhall to validate processes, technology and industry readiness before any wider implementation. The trial will rely on CP engagement and feedback and is intended to support managed migration to better alternatives, with Openreach’s clear preference that all WLR3 services move off to strategic products before January 2027.
All-IP Programme
All-IP Programme
FAQ
Why are Openreach closing exchanges?
As part of the nationwide move towards full fibre, Openreach has announced their intention to exit exchanges that will no longer be needed to support FTTP, FTTC or Ethernet services. Openreach’s 5,600 exchanges were originally built for the Public Switched Telephone Network (PSTN), but only about 1,000 are now needed for modern fibre services.
Will my customers be affected by the closures?
We will be notifying all affected partners in advance of exchange closures, so you have time to consider the best options for your customers. Please keep an eye out for emails from us, and updates to this page with further details.
What do I need to do to support my customers?
Customers who are currently using legacy technologies will need to be migrated to future-proof products to ensure they continue to benefit from great connectivity services in the future. Please refer to the ‘Our Approach’ sections for further information and details about next steps.
Where can I find more information about my data?
Please refer to the dedicated information and FAQ page about your data here.
Where can I find more information about Product Switching?
Please refer to the dedicated information and FAQ page about product switching here.
Where can I find more information about CNI and Vulnerable Customers?
Please refer to the dedicated information and FAQ page about CNI and Vulnerable customers here.
What should my next steps be to prepare for the WLR switch off?
Think about the services provided over your customer’s lines and your own, and consider the following:
Will they work on an All IP network?
What about local powering and battery back-up?
What will you say to your customers and when?
How will your and your end customer migrations be performed?
Once you've considered these aspects, it's time to set out a plan at the earliest.
Reach out to Communication Providers, sign up for the Openreach newsletter at
www.formwize.openreach.co.uk/run/survey3.cfm?idx=505d04080b090e08
, and monitor updates on the Openreach website:
www.openreach.co.uk/orpg/home/products/wlrwithdrawal/wlrwithdrawal.do.
Will Openreach be running any trials in the run up to the WLR switch off?
Yes - Openreach will be running the WLR3 EVAc trial to test an emergency over‑run product that preserves access to lifeline and emergency services for customers who have not yet migrated away from WLR3 ahead of final withdrawal.
What happens to customers with analogue landlines?
As the UK Telephone landscape gets upgraded to digital, all analogue services will need to be replaced by digital landlines before the January 2027 Switch Off deadline. Have conversations with your customers early to avoid disruptions. Refer to BT's Connected Together pages to learn more and plan next steps: Connected Together - All-IP - About BT | BT Plc.
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