Legacy Copper Services Are Being Phased Out - and Priced Out

Picture of Natalie Strange

Natalie Strange

Managing Director @ RPS Telecom

The UK telecoms industry is entering its final transition away from legacy copper networks. With the PSTN switch off scheduled for January 2027 and Openreach confirming steep price increases on copper-based services, businesses that continue to rely on traditional phone lines face rising costs, declining reliability, and unnecessary risk.

At RPS Telecom, we’re helping businesses move away from legacy copper by migrating to full fibre broadband and VoIP phone systems -modern, digital alternatives built for long-term performance and value.

What Is The PSTN Switch Off?

The Public Switched Telephone Network (PSTN) is the analogue phone network that has supported UK landlines for decades. As part of the UK’s digital transformation, this ageing infrastructure is being permanently retired.

From January 2027, PSTN and ISDN services will no longer operate. This affects:

  • Business landline phone systems
  • ISDN services
  • Analogue lines for alarms, lifts, EPOS and fax
  • Any service running over a copper phone line

For businesses still using PSTN or ISDN, migration is now essential – not optional.

Openreach Price Rises On Copper Services

To accelerate the move to digital connectivity, Openreach has announced phased wholesale price increases on copper-based products, including Wholesale Line Rental (WLR) services.

The confirmed increases are:

  • 20% increase from 1 April 2026
  • 40% increase from 1 July 2026
  • A further 40% increase from 1 October 2026

By autumn 2026, these changes will effectively double the cost of traditional copper line rental, well ahead of the PSTN switch off in 2027.

The message from Openreach is clear:

Legacy copper services are being phased out and priced out.

For businesses, remaining on copper will soon mean paying significantly more for technology that is approaching end of life.

Why Copper Phone Lines Are No Longer Viable For Business

As investment shifts away from copper infrastructure, legacy services are becoming increasingly unreliable and costly to maintain. Businesses relying on copper phone lines face:

  • Higher fault rates and longer repair times
  • Poor call quality and limited scalability
  • Reduced support as networks are withdrawn
  • Incompatibility with cloud services and VoIP


With prices rising and performance declining, copper services no longer offer value for money.

The Digital Alternative: Full Fibre Broadband And VOIP

The PSTN switch off and Openreach price rises create a clear opportunity to upgrade to modern digital connectivity.

Full Fibre Broadband (FTTP)

  • Ultrafast, consistent speeds
  • Greater reliability than copper
  • Supports VoIP, cloud platforms and remote working


VoIP

  • Business calls delivered over your internet connection
  • Flexible, scalable phone systems
  • Ideal for hybrid, mobile and multi-site teams


In many cases, VoIP and fibre broadband already cost less than copper-based services, even before the Openreach price increases take effect.

How Businesses Should Prepare for the PSTN Switch Off

1. Audit Your Existing Lines

Identify all PSTN, ISDN and analogue connections, including hidden or critical lines used for alarms or backup services.

2. Check Fibre Availability

Full fibre rollout is expanding rapidly across the UK. Where FTTP isn’t yet available, SOGEA and digital voice solutions offer an effective interim alternative.

3. Plan Your Migration Early 

Early action helps businesses avoid:

  • Rising copper line rental costs
  • Limited engineering availability in 2026
  • Last-minute disruption ahead of the PSTN switch off 

Why Choose RPS Telecom for PSTN Migration?

RPS Telecom provides end-to-end support for businesses preparing for the PSTN switch off:

✔ PSTN and ISDN migration planning
✔ Business VoIP phone systems
✔ Full fibre broadband and leased lines
✔ Backup connectivity and resilience solutions
✔ UK-based expert support

We focus on future-proof connectivity, not short-term fixes.

Act Now Before Costs Rise Further

With Openreach’s copper price increases starting in April 2026 and the PSTN switch off in January 2027, delaying action will only increase cost and risk.

Businesses that migrate early can: 

  • Avoid escalating line rental charges
  • Improve reliability and call quality
  • Enable modern, flexible ways of working

Prepare Your Business for the PSTN Switch Off

Speak to RPS Telecom today to assess your current services and plan a smooth transition to full fibre broadband and VoIP.