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cost, the duration, the number of calls for each object in the organization map: people, cost center,
departments, trunks, etc. Cumulative counters are automatically created, to store this important
information and access it quickly.
However, what about the CDRs containing the detailed information on each call? If they remain on
the hard disk, no space is saved. If they are deleted, what about the detailed information that may
be useful (e.g., in case of a claim)?
The second strategy, which is supplemental to the cumulative counters, is to automatically archive
the oldest CDRs to keep only the most recent information (e.g., three last months). As soon as the
CDRs are safely stored on an external device, they can be deleted from the local disk. A past period
can be restored by time range for claims and access to more detailed information. New reports can
be generated on these CDRs.
These two features are included in OmniVista 8770 accounting, for faster report generation for total
reports, for a long period, and to store information for several years, for medium and large networks.
Archiving the oldest CDRs frees space on the system disk, resulting in better performance, while
detailed reports can still be generated by restoring information from the archived CDRs.
Cumulative counters
Cumulative counters are automatically calculated by the OmniVista 8770 after CDRs are loaded.
There are counters on duration, costs and number of calls, day-by-day, month-by-month and yearby-year, for each object in the organization map: sets, trunks, cost centers, carriers, directions, etc.
Cumulative counters are used in predefined reports to allow quick generation of reports over long
periods (e.g., 12 months), while deleting CDRs.
See the list of predefined reports based on cumulative counters in the section Predefined report
definitions.
Customized reports may also be generated using cumulative counters information; in this example, a
Wizard helps to generate a customized total report for each project daily:
CDRs' Archive/Restore
Archiving may be automatic or manual when selecting a period of time.
Archiving begins automatically after one month of CDR loading.
The CDRs can be stored on a selected disk which can be local or external; files are sorted by node
and by date. Archived files are restored manually.
CDR storage
The maximum number of tickets handled per day is 500.000 with a maximum of 30 Million tickets in
the OmniVista 8770 database. By default, the call detail records are kept in the OmniVista 8770
database for three months. This parameter can be changed in respect to the maximum number of
tickets supported by the MySQL database (30 Million). Every night, the call detail records are
aggregated into the counters (Days, Months, Year). Call record files older than one month are
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Chapter 12: Management Operations
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