a unique sequence number identifying the record.the identification of the telephone exchange or equipment writing the record.the billing phone number that is charged for the call.the starting time of the call (date and time).the phone number receiving the call ( called party, B-party).the phone number of the subscriber originating the call ( calling party, A-party).In actual modern practice, call detail records are much more detailed, and contain attributes such as: By way of simplistic example, a call detail record describing a particular phone call might include the phone numbers of both the calling and receiving parties, the start time, and duration of that call. It is the automated equivalent of the paper toll tickets that were written and timed by operators for long-distance calls in a manual telephone exchange.Ī call detail record contains data fields that describe a specific instance of a telecommunication transaction, but does not include the content of that transaction. The record contains various attributes of the call, such as time, duration, completion status, source number, and destination number. A call detail record ( CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions (e.g., text message) that passes through that facility or device.
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