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Cellular
Dual SIM and multi-network
Two SIMs or a multi-network SIM so a site can use whichever network is strongest and keep working if one network fails.
What it is
Dual SIM routers hold two SIMs on different networks and switch between them on signal loss, data limits or failed connection checks. Dual modem routers keep both connected at once. Multi-network SIMs achieve similar resilience with a single SIM that can roam across UK networks.
Where it fits
- Unattended sites that must stay online
- Vehicles moving between coverage areas
- Critical services such as alarms and grid control
What to look for
- Single modem dual SIM or dual modem
- Switching rules and connection checks
- Whether a multi-network SIM is simpler
See our multi-network data SIM and dual SIM routers.
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
Dual SIM or multi-network SIM?
Dual SIM gives you two independent contracts. A multi-network SIM gives similar resilience with one SIM and one bill. We can advise on which suits the site.
In the glossary: Dual modemDual SIMMulti-network SIM