I have a DSC Impassa alarm system installed, it has a 3G2055 cellular and GS2055 tel communicators with an open SIM card, all communication parameters are factory default. I have and will will need to retain all codes and access to the system, can you monitor it?
You can verify whether your module is unregistered and available for use here.
That said, those model numbers just turned up results for Connect 24. Can you verify the modules have the Alarm.com name and logo on them? I believe it would be a small logo near the bottom of the module board.
If it is an Alarm.com module, yes, and you have access to every system code and programming parameter.