The UK Copper Switch-Off 2027: How to Protect Your Business

Time to Secure Your Business as the Copper Era Comes to a Close

The era of copper-based networks is winding down, and the UK is making a definitive leap toward digital—phasing out the old PSTN and ISDN systems in favour of IP-based solutions like full-fibre (FTTP) and SOGEA. This shift isn’t just an upgrade; it’s a critical move to future-proof your communications.


The Clock Is Ticking: What You Need to Know

Here’s the reality: most businesses are not yet ready for the switch. According to recent research, only 18% of small businesses and 26% of larger firms have transitioned to all-IP communication systems. That leaves a vast number still relying on infrastructure that’s becoming obsolete—and fast.

Starting December 2025, businesses may receive as little as 90 days’ notice before their legacy systems are disconnected. And by January 2027, the copper network will be fully retired. If your telephony, broadband, security systems, card readers, or IoT devices still lean on copper, now is the time to act.


Why Delaying Isn’t an Option

Continuing to use PSTN comes with risks:

  • Service interruptions — Missed calls, lost sales, and frustrated customers.
  • Operational chaos — A rushed migration under tight deadlines is costly and disruptive.
  • Rising maintenance costs — Legacy technologies become increasingly expensive to sustain.
  • Vulnerability to cyber threats — Older infrastructure is far less secure than modern IP-based systems.

The connectivity you rely on today isn’t guaranteed to be here tomorrow. Upgrading now gives you a competitive edge: faster cloud services, crystal-clear video conferencing, scalable infrastructure—all while your competitors are playing catch-up.


What to Do Next

Even if full-fibre isn’t yet available at your location, you can start planning. Here’s how:

  1. Check your infrastructure availability — Identify whether FTTP, SOGEA, or suitable leased lines are in your area.
  2. Audit your legacy dependencies — Make a comprehensive list of equipment still tied to PSTN or ISDN.
  3. Consult your technology partners — Get expert advice on which systems are ready for migration and which need upgrades.
  4. Evaluate your business needs — This might be the perfect moment to leap into full-fibre and modern communication tech.

At Fusion Mobile Communications, we’re here to support you every step of the way. Over the coming months, we’ll share guides and tips to help you navigate this transition smoothly—and avoid any service disruptions.