>Have the WiFi Access Point, or some other gateway, act as the broker for all information, and the default is each device sees nothing until given permission. *
Not everywhere is going to have WiFi. A SIM can use a private APN that selects the PGW/IP/Network range and from the ISP usually has a VPN to your network. Does not go "over the internet" at all.
This is (usually) how industrial IoT, connected cars etc work. Shipping containers cant rely on WiFi.
Not everywhere is going to have WiFi. A SIM can use a private APN that selects the PGW/IP/Network range and from the ISP usually has a VPN to your network. Does not go "over the internet" at all.
This is (usually) how industrial IoT, connected cars etc work. Shipping containers cant rely on WiFi.