Connecting Elecrow Sim808 GSM+GPRS+GPS+Bluetooth Shield to Arduino Mega 2560

Anyone out here could help me show the exact pins to connect this Elecrow Shield to Arduino Mega?

https://www.elecrow.com/wiki/index.php?title=SIM808_GPRS/GSM%2BGPS_Shield_v1.1


MODERATOR: Replaced URLs by resolved URLs