UK PSTN & ISDN switch-off · 31 January 2027
2027PSTNswitchoff.co.uk
Old phone network closes 31 January 2027

Will your phones, alarms and card machines still work on 1 February?

The UK's old copper phone network closes on 31 January 2027. We find every line in your business, tell you what will stop working, and give you a plan and costs in as little as 2 working days.

  • Fixed prices
  • No obligation to buy from us
  • Your bill kept strictly confidential

31 Jan 2027

Last date for migration orders before the old copper network is retired.

1 Feb 2027

ISDN2 and ISDN30 lines are ceased with no migration path. Older phone systems stop working.

350,000

Business premises still on the old network (Openreach, September 2026).

It's not just your phones

Most businesses have lines that quietly run something important. These are the ones that catch people out.

Phone lines, handsets and older phone systems
Fire and intruder alarm signalling
Lift emergency phones
Card machines and payment terminals
Door entry, gate intercoms and access control
Franking machines, fax and telemetry
Telecare and personal alarms
Lines on your bill that nobody can explain

One clear plan, in plain English

  • A register of every line and what is connected to it
  • A risk rating for each line, life-safety items first
  • A migration plan in priority order
  • Indicative costs for equipment and installation
  • The questions to ask your phone provider, alarm company and lift maintainer

Sample report · Risk register

LineConnected toRisk
Line 1Lift emergency phoneCritical
Line 2Fire alarm signallingCritical
Line 3ISDN30 phone systemHigh
Line 4Card machineMedium

Illustrative example only.

Fixed prices, no surprises

All prices exclude VAT. No obligation to buy anything else from us.

Virtual Audit

£125 + VAT

Deep-dive remote audit from your phone bill, a guided video walkthrough and a short questionnaire. Up to 5 lines, one site. Results in 2 working days. Industry benchmark: £495 + VAT.

Book Virtual Audit
Most popular

Site Audit

£795 + VAT

On-site survey tracing every line to its equipment. Up to 20 lines, one site. Alarms, lifts and phone systems checked.

Book Site Audit

Multi-site

Contact us

One coordinated audit and plan for groups, franchises and landlords with more than 1 site and unlimited lines. Email info@2027pstnswitchoff.co.uk for a fixed quote.

See what's included

Your phone bill stays private

We use your bill only to carry out your audit. We never sell or share it, and we delete it when the job is done. Read our Strict Confidentiality & Privacy Policy.

Don't leave it to the January rush

Phone providers and engineers will be at full stretch in the final weeks. Book now and get your plan before Christmas.

Book your audit

2027PSTNswitchoff.co.uk is an independent telecoms consultancy, not affiliated with BT or Openreach.