you can use Terminal VBray + Macro .
set Macro to put AT command on each of 12 touch..
or similar program as serial terminal software REALTERM
**broken link removed** , i used to test a GSM2-click from MikroE
but you must before apply a correct sequence of power ON ..
i did it with a PIC program wich has a debug mode :
When in debug mode, the the PIC receive direct AT command from a terminal
and send this command to the GSM, and write the response back to terminal display.
on every GSM .. you must get a "OK" response when first transmit "AT" or "AT"<CR>
if not, no chance to dialogue with GSM.