Is it possible to select a preferred operator?
The SIM cards automatically connect to the operator with the best signal in the current location. They use a “no-steering” system, which means that they do not have preferred operators and thus guarantees the best possible service quality everywhere. Alternatively, if the option is available on your device you can connect your SIM card to a specific operator by manually selecting one of the operators picked up by the device in its current location.
If manual selection of operators is not available on your device, you can set a single-operator profile in the IoT portal.