"I spent large parts of 2021 and 2022 investigating and mitigating reliability problems sending and receiving data over GSM, Cat M, and Cat 1 cellular networks in the US. This is not a difficult problem when the IoT device is stationary (e.g. a remote, solar-powered sensor). When an IoT device remains fixed in place, one must find a cellular modem and network service that work in that location."-- Provided by publisher.
