The retirement of the Public Switched Telephone Network (PSTN) by January 2027 is the most significant change to the UK’s communication infrastructure in a century. While the deadline might seem comfortably in the distance, the “Stop Sell” on analogue lines is already in effect across much of the country.
What Is The 2027 Landline Switch Off?
The UK’s landline switch-off in 2027 marks the end of the country’s old copper-wire telephone network, which is called the Public Switched Telephone Network (PSTN). Digital alternatives that run over the internet, a technology often called Digital Voice or VoIP (Voice over Internet Protocol), will replace traditional analogue phone lines by January 31, 2027. Some of these lines have been in use since the 19th century.
Why The Change?
This change is necessary because the old copper infrastructure is hard to keep up with and is prone to problems. Digital lines, on the other hand, offer clearer audio and are more reliable. Most people will just plug their current phones into their broadband router, but the switch also affects “hidden” devices like burglar alarms, telecare pendants and lift emergency phones that are currently using the old network. So, the deadline was pushed back from 2025 to 2027 to give vulnerable users and important service providers enough time to safely upgrade their equipment.
What Steps Can Help For a Smooth Transition?
As many households and businesses plan for this big change, the goal will be to ensure the transition is as smooth as possible and with minimal downtime. The steps below can help with the process.
The Full Property Audit: Identifying “Hidden” Analogue Devices
Most people think that turning it off only affects their phone. But the old copper network carries more than just voice signals. To make the switch go smoothly, you need to walk around your property and find every device that is connected to a phone line or uses an analogue signal.
- Systems for Security: A lot of older burglar alarms use PSTN-based monitoring like “Redcare.” Once the switch-off happens, these will stop talking to monitoring centres.
- Emergency Lifts: If you run a building, the emergency call button in the lift usually works on a separate PSTN line.
- Payment Terminals: Older EPOS (Electronic Point of Sale) machines in stores use “dial-up” signals to process credit card payments.
- Fax Machines: Some law and medical firms still use them, but they are not very common. To work on a digital line, these need an ATA (Analogue Telephone Adapter).
Know The Difference Between “Digital Voice” and “VoIP.”
There are a lot of different words for this, but they all mean the same thing: your calls will now be sent over the internet as data.
- Digital Voice: This is the brand name that companies like BT use to make it easy for customers to understand. You need to plug your current phone into the back of your broadband router.
- VOIP (Voice Over Internet Protocol): This is the bigger technology. This could mean a “Hosted PBX” system for businesses, where you use special IP desk phones or software on your laptop to make calls.
Get In Touch With Your Service Provider
Don’t wait for a message saying “service disconnected.” Talking to each other ahead of time is important. is what you should ask your provider. Questions to ask your Service Provider:
- “Is my current router compatible with Digital Voice?”
- “Can I keep my phone number?” Yes, most of the time, but it has to be “ported” correctly.
- “What is the time frame for my local exchange?”
Solve the “Power Cut” Dilemma
Copper lines carry their own small electrical current, so they still work when the power goes out. Digital lines don’t. Your router needs power from the wall to work. You need to buy a Battery Backup Unit (BBU) if you live in an area where power goes out often or the mobile signal is weak. These units give your router 1 to 4 hours of backup power, so you can still call 999 for help if the lights go out.
Test Before the Deadline
Test every peripheral device as soon as you switch to a digital line. Just because your phone has a dial tone doesn’t mean your alarm system is working. Send a test signal to your monitoring company to make sure the data is going through the digital network correctly.
