He decided to go with the low-cost SIM800L GSM modem, but as it only works on 2G networks, provisions have been made in the board design to swap it out for a more modern module should you desire.

The Open Electronics GSM/GPRS/GPS modem includes a header for an FTDI USB serial chip and a GSM module. Plug one into your computer and after a few short commands into a terminal, you’ve got a ...

"Fibocom's MQ780-GL module, powered by the Qualcomm E51 4G Modem-RF, exemplifies our dedication to advancing LPWA technology," stated Vieri Vanghi, VP, Product Management, Qualcomm Technologies ...