SIM900/SIM800 are 2G only modems, make sure your provider supports 2G as it is already being phased out in a lot of areas around the world, else a 3G/4G modem like the SIM7100 / SIM5300 is warranted.

ostaquet changed the title Usage of library with a SIM800L chip Usage of library with SIM800L V2 EVB chip on May 1, 2020 ...