I bought a avr-gsm dev.board from Olimex by coolcomponents.co.uk.
I have rev. B
12 volt is connected, green led is on (power).
Usb is working as comport.
But the Gsm module is not working.
I have put in a sim from Simyo without pincode (disabled by gsm phone).
Any advise in how to proceed with error checking?