September 2007 User Defined FieldsSystem Infrastructure Guide 151Understanding call dataCall data captured by the Nortel TDM Recorder includes associated andnon-associated call data. Associated call data represents parameters of thecall such as the start time, stop time and call length. In addition to the calldata values, other data fields can be appended that contain any relevantbusiness data that is associated with the call. This data can be from switchCTI ports and be information such as Agent extension or wrap-up codes, ordata from back office systems, such as value of sale.Non-associated call data represents the concept of data channels which canbe any data associated with channels. These allow the Recording ControlEngine (formerly named Unify) to place records into the database when theycannot be directly associated with a voice call. This is because the call haseither finished or the inum of the call is unknown. At this point, a join isperformed between some common element within the associated data, suchas a unique ID from the CTI system, to allow this non-associated data to beadded to the call details.Associated call data, as in the following list, is used in the Nortel TDMRecorder environment through User Defined Fields (UDFs). The followingcall details are logged with every call recorded: Start Date and Time End Date and Time Call length Dialed Digits (outbound) CLI Digits DNIS Call ID (unique to the call and Recorder) Call direction User Definable Fields
