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Call data records (CDRs) are the recorded data from a specific phone number (e.g. text message, or phone call) produced by a telephone exchange from a mobile phone or similar device.
However, the contents of the calls/messages are not revealed through a call data record. Call data records simply detail the calls or messages that took place, outlining basic call properties and measurements.
When Call Data Record Analysis is combined with Cell Site Analysis, an accurate geographical location of the mobile device can be established, constructing conclusive evidence. Pattern analysis can also assist with identifying when a device travels over a significant distance.
Cell Site Analysis is a digital forensic process designed to establish the geographical location of a mobile phone when calls, messages or data is sent or received. This can determine if a device was within the vicinity of a location on a specific time and date and track the path of a mobile phone from location to location.
Combined with Call Data Records, the information gathered is used to graphically illustrate the movement and general locality of a device and/or user. This combined data is vital in establishing phone usage and user movements on various dates leading up to the events in question.
CDR logs list every billable communication from mobile phones, allowing definite records of how and when a phone was used. This data can be crucial for companies that require digital evidence for internal investigations, covering a range of circumstances, including:
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