A.4 Understanding the CiscoCM Supplemental Database

The CiscoCM supplemental database is a SQL Server database that you create on the proxy agent computer. In terms of monitoring Communications Manager 4.x clusters, the database fulfills one function: storage for phone deregistration data.

The 4x_PhoneDeregistrations script uses AXL queries to create a list of unregistered phones and to identify when they reregister. The script stores the deregistration data in an audit table in the CiscoCM supplemental database, from which it is easily retrieved for reporting. The Communications Manager configuration information that the Report scripts need to accommodate the grouping choices you make is retrieved by the 4x_RetrieveConfigData and also stored in the supplemental database.