The IMSI in this GSM usage record does not contain a valid home PMN.
Common Resolution(s)
Actions you can take to resolve the problem:
If this rarely occurs, the CDR may be bad or malformed. If so, it can be left alone (it will eventually age and no longer be visible) - or it can be purged immediately if desired.
If the PMN in the IMSI is not specified in the PMN table, use Applications/ Backoffice Management/ PMN Management to add it to the PMN table.
If the usage record should be billed anyway, choose Override Rule on the usage record. If this is done frequently, consider a change to Unbillable Rules for this Unbillable Code. Note that ignoring lookup failures can have undesirable downstream repercussions – although some event type processing doesn’t care about Home PMN, in others the Home PMN is fundamental to determining the correct roaming agreement.
Details
GSM voice and data usage records usually specify an IMSI; the IMSI contains an embedded Home PMN that indicates if this record should be direct billed or outcollected. The Home PMN in each such record must be known to CostGuard in order to locate the correct roaming agreement. In this case, this is a GSM usage record and the Home PMN in the IMSI could not be found in the PMN table.