First of all check that the MSS is generating CDR / DRs. I am sure that you have a Mediation Layer that is extracting CDRs/DRs and doing a certain level of Transformation for the northbound IT systems (e.g. Billing, Fraud, BI, etc..). Check that the Mediation is not “dropping” CDRs/DRs. Check it the IP Network is stable and that CDRs have not been buffered on the MSS or the Mediation device.
Check if the MSS is configured to push CDRs / DRs to the Mediation device.
VBR/ Wallis Dudhnath