The Free On-line Dictionary of Computing (30 December 2018):

Call Data Record

    (CDR) A data record that contains
   information related to a telephone call, including the
   origination and destination addresses of the call, the time
   the call started and ended, the duration of the call, the time
   of day the call was made, toll charges that were added through
   the network, or charges for operator services.

   [Context?]

   (2010-03-21)