Hi, I am researching a IoT technologies, more specifically the communication protocols available. I noticed there are available LTE Cat-1 modems set up specifically for different regions: us, eu, etc. The bandwidths of these regions more or less overlap. But europe has an addition of 2G fallback. My question is: can a single device be used for all regions? The fact that they are sold by regions is it a hardware or software (firmware) issue e.g. if “European” device was to have the 2G fall back disactivated (if that’s even possible) could it be used in us and eu?