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Cellular
Cellular backup and failover
Automatic switch to 4G or 5G when the main line fails, and back again when it returns, so tills, phones and systems keep working.
What it is
A backup router sits alongside the main broadband, either as the main router with two WAN connections or plugged into a spare WAN port on an existing firewall. It monitors the main line and moves traffic to cellular when it fails.
Where it fits
- Shops and restaurants taking card payments
- Offices, practices and schools
- Sites where downtime costs money
What to look for
- How failover is detected (ping checks, not just link state)
- Which systems must stay up on backup
- A data plan that covers an outage day
Browse 4G routers and 5G routers, or see bonded 5G for combining connections.
Part of our cellular hub. You will find the products we sell for this below, along with our explainers. If you are planning more than a handful of sites, talk to us before you buy: getting the router, antenna and SIM right first time saves site visits later.
Talk to an M2M and IoT connectivity specialist. Not sure which technology fits your project? Tell us what you need to connect and where, and our UK team will recommend the router, antenna and SIM, with pre-sales advice, after-sales technical support and a range of configuration options.
Questions
Does failover happen automatically?
Yes. The router detects the failure and switches, then switches back when the main line recovers.
In the glossary: Failover