Why Energy Security Now Matters To Business Connectivity

Energy and connectivity were traditionally two distinct conversations. Energy was a facilities problem, something the building manager could help with. Connectivity was the IT issue, routers, broadband and phone systems. The two topics rarely intersected in a boardroom discussion.

That division is no longer valid. Recent events have forced us to recognize the inextricable link between the two: power outages disrupt communications infrastructure and the reverse also holds true.

The Structural Shift That Is Changing Connectivity

The UK’s traditional PSTN landline system, which will be switched off in 2027, has one unique characteristic of resilience that many businesses never appreciated until now: it carried its own power. Traditionally, a copper landline continued to work during a power cut because the exchange powered the line directly. When everything else failed, the phone was the last thing standing.

Modern Phone Systems and The PSTN Switch Off

The PSTN replacement’s digital voice services function differently. They are built on broadband, which is built on routers that require A.C. power. No power means no broadband. No broadband means no calls, no VoIP, no services and no business systems. Every UK business that is now using digital voice systems has to take that dependency into account in their resilience planning because that dependency did not exist five years ago.

Commercial and Business Connectivity

Communications systems centred on the cloud require constant power. Cloud-based communications technologies (VoIP phone systems, unified communications, video conferencing, cloud-based CRM and ERP) have brought powerful operational advantages to UK firms. However, they have established a model of connectivity that is highly reliant on mains power and broadband.

Broadband Backup is a Must

For most firms, the appropriate response has been to implement broadband backup. This means that a second broadband connection is triggered automatically when the primary connection goes down. Typically, this involves a 4G/5G mobile broadband router that integrates seamlessly with fixed broadband.

Practical Steps For UK Businesses

As UK business move towards the cloud, there are some simple steps to take to ensure connectivity during a power outage. From auditing your dependence chain to investing in a broadband backup:

Audit Your Dependency Chain

Start by mapping every system in your business that depends on mains power to function: router, VoIP hardware, server, PoS terminals, security systems and what happens to your operations if each goes down. Most businesses find more dependencies than they expected and some find single points of failure they weren’t aware of.

Invest in a Secondary Broadband Connection

A 4G or 5G failover router from a different network operator to your primary broadband provider is the most direct protection against connectivity loss. Modern failover solutions switch automatically in under a minute and are effectively invisible to users. The cost, typically £30-£80 per month depending on data allowance, is modest relative to the cost of even a few hours offline for most businesses.

Invest in a Good UPS

Installing a UPS for your Router, VoIP and other critical switching devices protects against network failures caused by brief power interruptions. The average small and medium-sized business will spend between £100 and £300 to buy a UPS for their router and VoIP and this investment requires no additional cost to manage.

Review Your VoIP Failover Configuration

If your business uses a VoIP phone system, check that call failover to mobile is configured and tested. A well-set-up VoIP system should route calls to mobile numbers automatically if the broadband connection drops, ensuring clients can still reach you even when your office connectivity is unavailable. This feature is available on most modern VoIP platforms but is not always configured by default. Test it before you need it.