The PSTN switch-off: move your business lines before 2027
Analogue and ISDN lines in the UK close by 31 January 2027. Move to digital calls now, keep every number, and switch on a date that suits you.
The deadline
UK analogue and ISDN lines close on 31 January 2027
108 days to go
After that date, phone lines and anything that relies on them will stop working unless they have moved to a digital service. Moving early means a calm switch on your timetable, not a rush at the end.
What is changing
Phone calls are moving to the internet
The old copper telephone network, the PSTN, and the ISDN lines many businesses use are being retired across the UK. Calls will travel over broadband instead, which is how our cloud phone system and SIP trunks already work.
Your phone numbers do not have to change. We move them to our network, so customers keep calling the same numbers while your calls go digital.
- Analogue business lines and ISDN2 / ISDN30 close
- Your numbers can be kept and moved to us
- Better features than a traditional line
- Works from the office, home or anywhere
Check before you switch
What in your business uses a phone line?
Phones are the obvious one. Many businesses forget the other equipment plugged into a line.
Phones and phone systems
Desk phones, an on-site phone system (PBX) or ISDN lines.
Alarms
Intruder and fire alarms that call a monitoring centre. Ask your alarm company.
Card machines
Older payment terminals that dial out on a phone line.
Lifts and door entry
Emergency phones in lifts, and door entry systems.
Fax machines
Fax can move to fax to email on our phone system.
Monitoring equipment
Telecare, meters and machines that report over a line.
Your options
Three ways to move
A cloud phone system
Replace your lines and old phone system with a hosted PBX, from £4.99 per user a month. Calls work on desk phones, mobiles and laptops.
SIP trunks
Keep your on-site IP phone system and connect it to our network over the internet instead of ISDN.
Virtual numbers
Keep your numbers and divert them to mobiles or another phone, from £4.99 a month each.
How it works
Your switch in four steps
- 1
Tell us what you have
Your lines, numbers, phone system and anything else plugged in.
- 2
Choose your setup
A cloud phone system, SIP trunks or virtual numbers.
- 3
We set it up and move your numbers
Ready before the day, so calls keep coming in.
- 4
Cancel the old lines
Only once your numbers have moved and everything works.
FAQ
PSTN switch-off questions
When is the PSTN switch-off?
Will I lose my phone numbers?
Is my business affected?
Do I need new phones?
What about my alarm and card machine?
How long does it take to move?
Ask us
Plan your switch with us
Tell us what lines and equipment you have today, and we will recommend the simplest way to move.
Call
0207 177 5000 · sales and support
Move before the rush
Switch to a cloud phone system and keep every number, on a date that suits you.