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Reply To: IN in GSM



What i hv learnt about the IN call flow is tht they define a tariff for various PID’s and they store it in the SCP.
When IN subscribers take any service of IN they put tht subscriber into tht service PID(Provider ID) O-CSI and T-CSI contains contains the service key for a particular service and whn a subscriber calls their call flows acc to the services they hv asked for. like one may hv got his local call free so the amount will be deducted from his offpeak balance ..and all this information is stored in SCP…