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Reply To: IN in GSM


Hi, i’ve read this thread with much interest as i’m quite new to this Camel & CAP2 stuff.

In a prepaid scenario, how does the MSC “query” the IN for credit balance by using CAP2? What is the CAP2 specific message that will be used?

When a prepaid sub makes a MO-Call, does the MSC goes to the HLR first to get the O-CSI? Then with that, it triggers a InitDP to the IN? After which, then it successfully makes a call out? Is double-triggering allowed – meaning to send a 2nd InitDP out to another node?

Is this how the callflow will be like? If anyone has the callflow, can you kindly share it? Thanks!