You will need the Global Title (like an IP address) of the SCP (gsmSCF) CAMEL node.
The Global Title (GT) and the Sub-System Number (SSN) can be requested from the Operator. If you are doing any protocol testing then you can get this information from the MSU by looking at Layer 3.
VBR/ Wallis Dudhnath
GT is similar to an IP address
SSN is similar to a port that is used with TCP/IP