6. The Data Filter
The Data Filter allows the user to make the most efficient use of PollCat memory by excluding
certain types of call records (such as inbound calls) not needed for your application.
When the Data Filter is correctly configured, PollCat III will monitor each record received
from the PBX. If the record matches the user-defined Data Filter Parameters, the call is stored
in memory. If the record does not match the Data Filter Parameters, the record is not stored.
The configuration procedure consists of three tasks:
·Define the Data Filter Format
·Define the Data Filter Parameters
·Enable the Data Filter
6.1. Defining the Data Filter Format
The Data Filter Format describes the location of various “fields” within each call record.
Proper definition of the Data Filter Format tells the PollCat III where to look, in order to
determine if a given record should be omitted or stored.
Each model of PBX will produce records with a slightly different structure. In order to define
the Data Filter Format, you must first examine several records from the PBX. This will allow
you to determine the exact call record format.
After the format has been determined, the next step is to assign variables to the fields you
intend to monitor. The Data Filter Format allows definition of up to twelve variables (the
letters A through L), which are used to indicate specific call record fields. These variables are
used later in definition of Data Filter Parameters.
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