Hi Steven,
In case you haven’t already come across it we’ve got a guide to using a SIM7600 4G HAT with a Raspberry Pi. We were able to make calls, send texts, and identify the GPS location using it. Check it out below.
There are around half a dozen different variants of the SIM7600G devices we carry in our shop, but since they are all using the same module they largely have the same capabilities with only minor differences in form factor and setup.