Documentation for LimeNET Gateway?

#1

I purchased/received two LimeNET Gateways via CrowdSupply.

Included within the packaging was a single page document describing a specific scenario with LimeNET Enterprise, I’m looking for more general documentation/specification about how I can use these units with existing commercial mobile network providers (eg, ATT Wireless and/or T-Mobile in the US).

Is there any documentation about how to configure/administer this device?

Are there specific requirements for the SIM card/account I will need to obtain to use this gateway with existing mobile network providers?