I would like to identify the nature of a call i.e. whether it is nationwide or international from the CDR. The CDR is being produced on the EWSD switch. Can the ‘Package 120: Category’ produced in the EWSD CDR be reliably used to identify international and nationwide calls i.e. does its values 7,8 and 9 always reliably indicate an international call?
Also what can be the possible scenarios which can cause the Category field to contain value ‘0’