UK Digital Switchover & Network Switch Off 2027-2033 | PSTN, 2G & 3G Support | Holden Grange

UK's Major Infrastructure Changes:
Are Your Systems Ready?

Two critical deadlines are approaching: Phone lines go digital by 2027, and mobile networks (2G/3G) switch off by 2033. This affects millions of telecare users, businesses, and device owners across the UK.

Digital/PSTN Switchover

Deadline: 31 January 2027

2G/3G Network Switch Off

Deadline: 31 December 2033

Critical: Multiple Systems at Risk

Telecare alarms have failed during digital switchovers. Mobile-connected devices are losing 3G support now. Government and Ofcom are urging immediate action to protect affected users.

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Which Switch Off Affects You?

Select below to learn more about each infrastructure change

UK Digital Switchover (PSTN Switch Off)

What's Happening

The Public Switched Telephone Network (PSTN) - our traditional copper phone lines - is being permanently switched off. All UK landline services must transition to digital Voice over Internet Protocol (VoIP) technology by January 31, 2027.

Why the Delay

Originally planned for December 2025, extended to January 2027 following serious incidents where telecare devices failed. The government demanded action after vulnerable users were left without emergency communication.

Who's Affected

Every UK home and business using traditional phone lines. Critical impact on 2 million telecare users, plus businesses with alarm systems, CCTV, door entry systems, lifts, and any device connected to phone lines.

Digital Switchover Timeline

September 2023

National Stop Sell

Openreach stopped selling new analogue phone lines nationwide.

Spring 2025

Vulnerable User Migration

BT begins contacting vulnerable customers and telecare users for supported migration.

January 31, 2027

Complete Switch Off

All analogue PSTN services permanently disconnected across the UK.

Affected Systems & Devices

Telecare Alarms

Security Systems

CCTV Systems

Door Entry

Medical Devices

Payment Terminals

2G/3G Mobile Network Switch Off

Network Evolution

Mobile operators are switching off older 2G (from 1991) and 3G (from 2003) networks to make room for faster, more efficient 4G and 5G services. This frees up valuable radio spectrum for modern technology.

Phased Approach

3G is being switched off first (2024-2025) as it's mainly used for data and has been superseded by 4G. 2G will remain longer (until 2033) as it still provides voice coverage in rural areas and supports many IoT devices.

Affected Devices

Over 2.4 million devices still rely on 2G/3G including older phones, care alarms, security systems, payment terminals, smart meters, vehicle trackers, and various IoT devices that use mobile connectivity.

Impact of Network Switch Off

2.4M
Devices Affected
4
UK Networks
2033
2G End Date
NOW
3G Switching Off

Network Provider Timelines

Completed Vodafone & EE

3G Switch Off Complete

Vodafone completed February 2024, EE completed early 2024. 2G remains active.

Ongoing Three

3G Switch Off by End 2024

Three never had 2G - customers need 4G devices to maintain service.

Ongoing O2

3G Switch Off Throughout 2025

Started April 2025, continuing nationwide. Moving traffic away from 2G.

Future All Networks

2G Switch Off by 2033

Government agreement: all 2G services end by December 31, 2033.

Comparing Both Infrastructure Changes

Aspect Digital/PSTN Switchover 2G/3G Network Switch Off
Technology Landline/fixed phone lines Mobile networks
Deadline January 31, 2027 December 31, 2033 (3G sooner)
Main Impact Telecare alarms, business systems Older phones, IoT devices
Power Dependency Digital lines need power (unlike PSTN) Battery-powered devices
Rural Impact Requires broadband availability May lose coverage if no 4G
Backup Options Battery backup, 4G failover Upgrade to 4G/5G devices
Government Role Active monitoring, vulnerable user protection Agreement with operators, Ofcom oversight

Combined Impact

Many devices are affected by BOTH changes. Mobile-connected alarms losing 3G must also prepare for the PSTN switch off. Businesses need comprehensive planning for both transitions.

Priority Actions

PSTN switchover is more urgent (2027 deadline) and affects critical safety systems. However, 3G is switching off NOW, so immediate action is needed for 3G-only devices.

Cost Considerations

Planning for both transitions together can reduce costs. Many modern solutions address both issues - e.g., 4G telecare devices that don't rely on landlines.

Why Choose Holden Grange for Your Transition?

5,000+
Successful Transitions
24/7
UK Monitoring Centre
96.84%
SOS Calls Answered Within 30 Seconds
4G/5G
Future-Ready Tech

Complete Testing & Compatibility

Our engineers test every device for both digital and network compatibility. We identify issues before they become emergencies, ensuring seamless transitions.

Resilient Backup Solutions

All solutions include battery backup and multi-network failover (4G/5G), ensuring your safety systems work during power cuts and network issues.

Government & Ofcom Compliant

We follow all government guidelines and Ofcom requirements, working with local authorities to protect vulnerable users during both transitions.

Frequently Asked Questions

What happens if I don't switch before the deadlines?

For PSTN: Your landline will stop working completely on January 31, 2027. Any connected devices (telecare alarms, security systems) will fail with no grace period. For 2G/3G: Your device will lose signal as networks switch off in your area - 3G is already being switched off, 2G continues until 2033.

Will my telecare alarm work after the changes?

Most telecare devices made before 2020 are NOT compatible with digital phone lines. Additionally, if your alarm uses 3G mobile connectivity, it may already be losing service. You need devices that support either digital lines with battery backup OR 4G/5G mobile connectivity for reliable operation.

What about power cuts - will anything work?

Unlike traditional phone lines that carry power, digital lines require electricity. During power cuts, you need battery backup for landline devices. Mobile devices will work on their own batteries, but need 4G/5G as 3G is being switched off. This is why modern solutions use both technologies for resilience.

Which change affects me more urgently?

It depends on your devices: If you have landline-connected systems (telecare, alarms), the 2027 PSTN deadline is critical. If you have 3G-only devices, you need immediate action as 3G is switching off NOW. Many people are affected by both and need comprehensive planning for dual transitions.

Is this legitimate or a scam?

Both changes are legitimate UK infrastructure upgrades. The PSTN switch off is mandated by BT/Openreach, while the 2G/3G switch off is agreed between government and mobile operators. However, scammers ARE exploiting these changes. Legitimate providers never pressure for immediate payment or ask for bank details over the phone. Verify directly with your providers or check GOV.UK and Ofcom websites.

Don't Risk Being Left Without Essential Services

With millions needing to transition and support services becoming overwhelmed as deadlines approach, early action is critical. Secure your assessment now while specialist support is still available.

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