Hi jwallis, No worries, I appreciate your interest. This is actually a proof of concept. I might not even use SIMCOM, most probably UBlox, as they are more reliable and their support is really good.
As far as the usecase, this modem is going to go into a LoRa base station, used as a gateway to cloud. Probably like a asset (can be anything) within a particular range, to track it and send data to cloud on its movement.