Maker Edition accounts are able to have up to 25 active lines.
What is a “Line” as opposed to SIM/Device?
When I tried to enable a second SIM your system refused the card.
I have (or will have ) 4 devices under test, Verizon, AT&T, T-Mobile at two locations. As it stands I can only get the first SIM activated. My Botletics device is sitting here doing nothing since you will not activate the SIM.
My SIM800L is collecting dust…