The Open Electronics GSM/GPRS/GPS modem includes a header for an FTDI USB serial chip and a GSM module. Plug one into your computer and after a few short commands into a terminal, you’ve got a ...

The GSM modem can be used as the primary source of communication or ... The modem communicates with a central station (ARC) using common format protocols (SIA, Contact ID) or IP over GPRS to SPC Com ...