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How are call detail records (CDR) captured?

April 26, 2017captured CDR records

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How are call detail records (CDR) captured?

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Call detail records (CDR) are created by the telephone switch (usually a PBX or Private Branch Exchange) owned by the user of Call Accounting software. The PBX may have the ability to store the CDR on its own hard disk for several weeks or months. Older PBXs would output the CDR to a standard RS-232 port. This port can be used to capture CDR on magnetic tapes or (more reliably) in a solid state Logical Storage Unit (LSU). The LSU of choice for the AccuTRAC Call Accounting system is the Data-Link device. The Data-Link has a host of features including battery backup and alarm filters to detect toll fraud that make it a superb choice for collecting call detail records.