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How Intelligent Network charged called party of roaming call

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hoangsonk49
How Intelligent Network charged called party of roaming call

Hi everybody,
I'm looking for the information of IN flow in case of roaming call. As I know, when A (calling) makes a phone call to B (called) who is roaming in other country, Both of A and B would be charged by IN. The InitialDP which carries the calling number and called number triggers IN to charge the calling A, but how about the called B? How IN know which InitialDP they need to charge the called B?

If possible, could you please provide me the IN camel packet (pcap file) which has the InitialDP of called charging?

Thank you so much!