When a SIM card has multi network capabilities, it can connect to multiple mobile networks within the same country. This is possible because SIM cards typically store multiple IMSIs, which can have different operator profiles on them. This is often facilitated by Mobile Virtual Network Operators (MVNOs) as they can have roaming agreements with various operators around the world.
With a non-steered multi network SIM, devices will be able to connect to the best available network based on signal strength and other predefined parameters. If the chosen network experiences issues or drops in quality, it will switch to another network profile, keeping the device connected and avoiding costly outages. For a Multi Network Sim, contact https://www.lister-communications.co.uk/business-mobiles/multi-network-data-sim-cards
Steered SIMs, on the other hand, will prioritise a single network over all others. This is usually done to reduce costs, but it can cause problems in some scenarios. For example, GPS trackers require a consistent connectivity to be able to record and report location data. If the tracker is continually switching between networks, this could cause inaccurate location reporting and render the solution useless.
For businesses with mission-critical applications, multi network SIMs are the ideal solution. They enable your business to keep its connections up and running, regardless of local coverage or network capacity, ensuring that important applications are always online when they need to be.