You can download TC GSM 1.0 from our software library for free. TC GSM relates to System Utilities. The actual developer of the free software is Wilhelm Rutenbeck GmbH & Co.KG.
From the developer:
This is the software program for the TC GSM /GPS alarm device.
Remote switching and alarm dialing via the mobile network
2 switching outputs, 2 alarm inputs and 2 analog inputs for the connection of temperature sensors
State changes via SMS to up to 4 phone numbers
You may want to check out more software, such as TC Audio Interface Software, GSM-FINDER PC Version or DITS GSM Finder, which might be related to TC GSM.