Problem with Seeeduino Mega2560 and GPRS shield 1.2

Community Project Proposal
2

If you want to use GPRS shield with Mega,you need to modify two points:
1)Program:SoftwareSerial GPRS(7,8)----SoftwareSerial GPRS(10,11);
2)You need connect pin-7 to pin-10(pin-8 to pin-11) by jumper wire.Because of not all pins on the Mega and Mega 2560 support change interrupts.

Have a try!