Are you also a newbie to programming - particularly embedded programming?
You might be better off to start by tackling some more basic projects to build the necessary skills before moving on to something more advanced like this…?
Actually, the WISMO218 is a GPRS module - your task is to interface it to the Arduino.
Tips on interfacing here: 8052.com/forum/read/160143
sierrawireless.com/productsa … S6318.aspx
I really don’t think that is a good idea for a beginner - I think you would be far better to start with a ready-made shield.
Start by gaining experience with a ready-made shield
Always start by researching the current state of the art: lmgtfy.com?q=Arduino+GSM+GPRS