/mcpMaximum Aggregate Busy Hour Call Attem (BHCA) Maximum Size of Database Maximum Number of CDR Records Version 5,000 3 GB 1 million records Cisco Unified Communications Manager Business Edition 5000 Configure a manual database purge when you want to delete records that are older than a particular date or that fall in a specific date range, but you do not want to change the automatic purging schedule. You can also reload the CAR database with CDR records by clicking the Reload button in the Manual Purge window. You may want to reload the database to reclassify calls after dial-plan updates, user-device association changes, call rate changes, and so on. After the system loads the new records, the system loads the records according to the schedule in the configured CDR load schedule. By default, CDR data loads 24 hours per day, 7 days per week. Event log purging, which is a daily scheduled job that monitors the tbl_event_log table, automatically deletes the tbl_event_ log records to keep the latest 3 days of daily jobs, the latest 3 weeks of weekly jobs, and the latest 3 months of monthly jobs; that is, if more than 1500 rows exist in the tbl_event_log table, CAR automatically enables event log purging and does not send an email when event log purging occurs. Call Costs You can use CAR to set a base monetary rate for the cost of calls on the basis of a time increment. Then, you can further qualify the cost by applying the time-of-day and voice-quality factors. Service providers who must account for service to subscribers use this feature. Some organizations also use this information to establish billing costs for users and departments in the organization for accounting or budgeting purposes. Reports that use these rating parameters include Individual Bill, Department Bill, Top N by Charge, Top N by Number, and Top N by Duration. If you do not change the default value for charge base/block, the cost will always remain zero because the default base charge per block equals zero. Note If you do not want to increase, call cost by voice quality, you can use the default values. The default multiplication factor specifies 1.00, so no increase in call cost for voice quality occurs. Note For more information on setting call rates, see CAR Rating Engine, on page 51. Tracking Activity CAR provides logs that can track the status of the various activities. The event log tracks events that the CAR Scheduler triggers, such as automatically generated reports, loading of CDRs, notifications, report deletions, database purging, and monitoring, and event tracking. CDR Management The CDR Management window can be accessed from Cisco Unified Serviceability by choosing Tools > CDR Management. CDR Management services manage CDR and CMR storage within the cluster, as well as file Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 8 CDR Analysis and Reporting CDR Management