/mcpC H A P T E R 8 Call Details Records Overview This chapter provides information about the format and logic of the Call Detail Records (CDRs) that the Cisco Unified Communications Manager system generates. You can use this information for post-processing activities such as generating billing records and network analysis. When you install your system, the system enables CDRs by default, Call Management Records (CMRs) remain disabled by default. You can enable or disable CDRs or CMRs at any time that the system is in operation. You do not need to restart the Unified Communications Manager for the change to take effect. The system responds to all changes within a few seconds. The system enables CMRs or diagnostic data separately from CDR data. • CDR Management, on page 203 • CDR Database Backup and Recovery, on page 205 • Record Processing, on page 205 • Call Information Record Types, on page 207 CDR Management The CDR Management (CDRM) feature, a background application, supports the following capabilities: • Collects the CDR/CMR files from the Unified Communications Manager server or node to the CDR Repository server or node. • Collects and maintains the CDR/CMR files on the server where you configure CAR. • Maintains the CDR/CMR files on the CDR Repository node or CDR server. • Allows third-party applications to retrieve CDR/CMR files on demand through a SOAP interface. • Accepts on-demand requests for searching file names. • Pushes CDR/CMR files from individual nodes within a cluster to the CDR Repository server or node. • Sends CDR/CMR files to up to three customer billing servers via FTP/SFTP. • Monitors disk usage of CDR/CMR files on the server where you configure CAR or on the CDR Repository server or node. • Periodically deletes CDR/CMR files that were successfully delivered. You can configure the amount of storage that is used to store flat files. Predefined storage limits exist. If the storage limits are exceeded, the CDR Repository Manager deletes old files to reduce the disk usage to the preconfigured low water Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 203