The LoRa technology allows building up scalable networks across long distances with very low, near zero operational costs.
Private users, as well as users requiring higher data throughput can benefit from the built-in WiFi functionality.
Bluetooth is primarily available for configuration purposes, but can be used for transmitting data over short distances.
In some situations and for some applications GSM is the only available option. CLOUDia incorporates a second battery rack in order to support GSM.