Can this be plugged in a linux pc?

do u have a code for sending an SMS and also to make a call for SIM908???

Link to product: http://store.open-electronics.org/GSM_GPRS_GPS_modem

Need to buy small breakout for SIM900 GSM module (or other), USB to serial converter and antenna. (all on the shop)

I received instructions in Italian. The USB to Serial sheet points to selecting 5V or 3.3V for the TX/RX lines. I found it worked with 5V which as shown in the diagram on the supplied (italian) instruction was the centre and left connections to bridge.

I found the “modem” capability this circuit provides is provided by the GSM chip and is Circuit Switched Data http://en.wikipedia.org/wiki/Circuit_Switched_Data
so you should CHECK YOUR OPERATOR supports this before buying.

CSD is not always supported and often requires activation. Although wikipedia says otherwise, I believe CSD will be phased out over the coming years.

http://www.cooking-hacks.com/index.php/documentation/tutorials/arduino-gprs-gsm-quadband-sim900 is a good reference for the same GSM chip so commands etc are the same. It is important 0D 0A (carriage return and line feed are at the end of your AT commands. (most terminal programs add them auto)

Hope this helps someone, these are purely my experiences. I’ve little actual knowledge.