Does Freaduino Gsm works with arduino gsm library.

Hey guys,
Do any of you know whether or not the Arduino GSM library works with "GPRS/GSM Shield -EFCom SHD-EFCOM by freaduino".
Just click on the name to be redirected to the official page, maybe there will be useful information to help me out.

Thanks a lot in advance.
Alexander.

See point 3 here.