Business failover internet that just works when you need it.
4G/5G automatic failover, secondary circuit failover, SD-WAN intelligent routing — engineered so the moment your primary line drops, business continues without anyone reaching for a router.
When the line fails, the SIM takes over.
The router carries two routes at once. Traffic uses the fibre; if that line drops, the 4G/5G route takes over automatically and the portal raises the alert, so phones, card machines and cloud apps carry on.
The backup SIM roams across the main UK networks, so it joins whichever signal is strongest at your address.
What we hear every week.
The frustrations behind why businesses search for business failover internet solutions in the first place. If any of these feel familiar, the fix is straightforward.
Outages stop the business dead
Single broadband line drops; phones, card payments, cloud apps, video calls all stop. Even brief outages cause significant operational friction.
Carrier fault resolution is slow
Reporting a fault to a carrier and waiting for resolution can take hours or days. Failover means business continues during that wait.
Backup that doesn't work in practice
Many businesses have something they call backup that's never been tested. When the real outage happens, the backup fails for unexpected reasons — wrong configuration, expired contract, unconfigured handover.
Cost vs benefit confusion
Failover sounds expensive; people imagine duplicating their entire infrastructure. In practice, 4G/5G failover is genuinely inexpensive and pays for itself in a single avoided outage.
Failover engineered for actual operational continuity
Three failover tiers cover most UK business needs. Tier 1 (4G/5G failover): a 4G or 5G router that automatically takes over when your primary line drops — typically £30-80/month, handles brief and medium-duration outages. Tier 2 (secondary circuit): a second broadband or leased line from a different carrier, load-balanced or hot-standby — handles longer outages and full carrier failures. Tier 3 (SD-WAN with diverse routing): mission-critical setups with multiple paths, intelligent routing based on real-time performance, and diverse physical routing to eliminate single-cable-cut risk. We design around your actual continuity needs.
When the line drops, nothing else does.
- Multi-network SIM roams to the strongest signal
- Switch-over is automatic and monitored
- Phones, card machines and cloud apps stay live
The Telexico approach to business failover internet solutions.
Six things our customers consistently tell us matter.
Automatic failover triggering
Sub-second detection of primary line failure; automatic switchover to failover path; no human intervention required.
4G/5G coverage included
Failover router with UK mobile data — works wherever there's 4G or 5G signal.
Secondary circuit options
Second business broadband or leased line from a different carrier for longer-duration resilience.
SD-WAN intelligent routing
For complex setups: real-time routing based on path performance, automatic optimisation, multi-site policy management.
Tested failover
Scheduled failover tests confirm the setup works under real conditions — not theoretical 'should work' resilience.
Failover event reporting
Every failover event logged and reported — visibility on how often it's protecting you and what's triggering it.
Built around the actual cost of downtime
Failover investment should be proportional to the cost of downtime. £30-80/month for 4G/5G failover is justified for almost any UK business — the first prevented outage pays for it many times over. Dual circuits or SD-WAN make sense for businesses where downtime is genuinely measured in hundreds or thousands of pounds per hour. We design around your actual numbers, not generic 'resilience'.
How it works for businesses like yours.
Three real-world setups we deliver across the UK.
Retail with card payment dependency
Card terminal offline = lost sales. 4G/5G failover usually pays for itself within months in retained transaction revenue alone.
Healthcare practices
Patient bookings, prescription processing, electronic patient records — all dependent on connectivity. Failover preserves continuity through outages.
Financial services and contact centres
Mission-critical uptime where downtime costs are significant. Dual circuits with SD-WAN and diverse routing become justified.
Why UK businesses pick Telexico for failover
We design proportional failover — not selling the most expensive option when a cheaper one fits. 4G/5G failover is something we install routinely for hundreds of UK businesses; SD-WAN is what we design for the mission-critical ones. Both done properly with tested failover and real SLAs.
What you actually get from Telexico.
Honest about scope. No aggressive sales tactics, no surprise renewal jumps, no tier-1 call-centre triage. Real UK engineers, transparent pricing, one provider relationship across the stack.
UK-based provider
Wolverhampton-headquartered. Engineers cover the West Midlands daily; UK-wide install via our partner network. Real UK engineer support, UK data residency, UK contractual relationship — not US-routed SaaS.
Real engineer support
When you call Telexico, you reach someone who can actually fix things. Response SLA backed by real engineering capacity rather than call-centre headcount. Named account manager for ongoing customers.
Free infrastructure review
Every engagement starts with a no-obligation audit of your current setup. Honest recommendation — sometimes that's "stay with your current provider after negotiation." We'd rather be honest than oversell.
Transparent pricing
What you sign for is what you pay — including renewal. No teaser pricing that jumps 30-100% at year two. No mid-contract CPI shock. Predictable multi-year cost from day one.
One provider, one platform
Broadband, hosted VoIP, business WiFi, AI Receptionist, 4G/5G failover, CCTV consolidated onto one Telexico relationship. Single bill, single support number, single engineer when something needs attention.
Migration project-managed
Switching to Telexico isn't DIY. We handle contract audit, notice timing, ordering, parallel running, cutover, old-provider close-out. Customer-visible disruption typically measured in minutes.
Tailored around your business.
Tell us what you have now and what's frustrating you. We'll come back with a tailored review of where we can simplify, consolidate or improve it — no fixed-package pressure, no hard sell.
You may also want to read
What is Starlink for business
Starlink Business is SpaceX's commercial-grade satellite internet service for businesses. It uses a constellation of...
Leased line vs full fibre
Full fibre (FTTP) and leased lines are both fibre-optic business connectivity, but they're fundamentally different...
Openreach vs CityFibre
Most UK business broadband is delivered over one of two main fibre networks: Openreach (BT-owned, the incumbent, covers...
Business Broadband cost
Indicative UK pricing for business broadband — what affects the price, ranges, and a free tailored review.
Leased Lines cost
Indicative UK pricing for leased lines — what affects the price, ranges, and a free tailored review.
Free infrastructure review
Send us your current setup. We'll review what you have, what you pay, and where we can simplify.
A primary fixed line, a secondary cellular line, and nothing in between.
The Telexico failover router has a primary fixed connection (any broadband or leased line) and a secondary cellular data connection. If the primary fails, the secondary takes over instantly and seamlessly: even a phone call in progress does not drop. When the fixed line returns, it switches back.
The same public IP, always
The static public IP address is the same on the primary and the secondary connection, so remote access, CCTV, VPNs and hosted systems carry on without reconfiguration.
Data SIM included
The cellular SIM is included in the monthly subscription, and there are no data charges to worry about when the primary line fails.
Set up in minutes
Connect your phone to the router’s WiFi, enter the admin password from the label, and the router pulls its settings from the cloud. Everything after that is managed in the portal.
24/7 central management
Check WAN connection status, manage port forwarding, configure wireless, run fixed-line and cellular diagnostics, and see real-time device usage, with secure 2FA access.
Usage by device
Drill down by device IP address to see how much data each device is using and which websites it is visiting.
Where it matters most
Card machines, cloud phones, CCTV monitoring, remote IT support and any operation that relies on the internet staying up.
| Specification | LTE6 ax (4G) | 5G ax |
|---|---|---|
| WiFi | WiFi 6 AX1800 (2.4 GHz 574 Mbit/s + 5 GHz 1200 Mbit/s) | WiFi 6 (2.4 GHz 574 Mbit/s + 5 GHz 1200 Mbit/s) |
| Mobile | LTE Category 6: 300 Mbit/s down, 50 Mbit/s up, 2×2 MIMO | 5G (SA and NSA) with LTE Category 20 fallback: up to 2 Gbit/s down, 200 Mbit/s up, 4×4 MIMO |
| Ethernet | 4 × Gigabit + 1 × 2.5 Gigabit | 4 × Gigabit + 1 × 2.5 Gigabit |
| SIM | 1 modem slot (micro SIM), data SIM included | 1 modem slot (micro SIM), data SIM included |
| Processor and memory | Quad-core 64-bit ARM, 1 GB RAM, 128 MB NAND | Quad-core 64-bit ARM, 1 GB RAM, 128 MB NAND |
| Reliability | MTBF about 200,000 hours; tested from −40 °C to 70 °C; passive cooling | MTBF about 200,000 hours; tested from −40 °C to 70 °C; passive cooling |
| Security | IPsec hardware acceleration; 2FA on the management portal | IPsec hardware acceleration; 2FA on the management portal |
| Power | 12–28 V DC, 17 W maximum | 12–28 V DC, 19 W maximum |
| Certification | CE, EAC, RoHS | CE, EAC, RoHS |
Swipe the table sideways on a phone.
Which model fits depends on your line speed, site size and what has to survive an outage; we specify it as part of the failover design, not as a box off a shelf.
Online, whatever happens.
Frequently asked questions
What's the cheapest meaningful failover solution?
4G/5G failover router — typically £30-80/month including a data allowance suitable for keeping core business running through outages (voice, card payments, basic cloud apps). Single router install, configures in minutes, auto-triggers on primary failure. Most businesses recover the cost in a single prevented outage.
How does automatic failover triggering work?
Failover router continuously monitors primary line health (ping tests, route availability, performance thresholds). When health drops below threshold, traffic re-routes through the secondary path automatically. Switchover is typically sub-second to a few seconds depending on configuration.
Will my phones keep working during an outage?
Yes if failover is configured to carry voice traffic. VoIP over 4G/5G works fine for typical office voice volumes — we configure QoS on the failover router to prioritise voice. For sites with very heavy voice traffic, 5G failover delivers more headroom than 4G.
What about card payments?
Card terminals work fine over 4G/5G failover. Most modern PDQs are IP-based and switch to the failover path automatically. For card-heavy retail or hospitality, we test specifically against PDQ behaviour during failover to confirm reliability.
Do I need a separate broadband contract for failover?
No — the 4G/5G failover uses mobile data, billed as part of the failover service. No separate broadband contract required for the failover layer. For secondary-circuit tier, yes — that's a second business broadband or leased line.
How often does failover actually trigger in practice?
Varies massively by primary line quality. Customers on stable lines might see failover trigger once or twice a year; customers on flaky lines (which is often why they buy failover) might see it weekly. Either way, the savings come from the prevented outages, not the frequency.
Can you do failover if my primary isn't on Telexico?
Yes — failover is decoupled from primary. We can install 4G/5G failover as overlay on whoever your primary broadband provider is. Many customers do this before considering broader switch.
Apply this to your business?
Reading the guide is one thing; applying it to your specific operation is another. Send us your current setup — we'll review what you have, what fits, and where to start. No hard sell, no fixed-package pressure.