How to connect itead arduino 3g gsm shield with arduino mega 256

Projects Networking, Protocols, and Devices
1

Hello guys, nice to meet you, i'm new member in this forum. I want to ask a questions
I have itead arduino 3G gsm shield and arduino mega 2560. How to connect 3G shield with arduino mega 2560 in a physically?

Thank you

2

http://farhek.com/pt/1t037n9/gsm-arduino/

3

Thank you