/mcpC H A P T E R 11 Call Management Records This chapter describes the format and logic of the call management records (CMRs) that the Unified Communications Manager system generates, and how to access the CMR files. • Call Management Records Overview, on page 365 • CMR Processing, on page 365 • CMRs for SIP Trunks, on page 366 • CMRs for Headsets, on page 368 • CMRs for Headsets, on page 369 • Set Up CMRs, on page 369 • CPU Utilization, on page 370 Call Management Records Overview The Unified Communications Manager system generates call management records (CMRs). You can use this information for post-processing activities such as generating billing records and network analysis. When you install your system, CMRs remain disabled by default, you can enable or disable CMRs at any time that the system is in operation. You do not need to restart Unified Communications Manager for the change to take the effect. The system responds to all changes within a few seconds. The system enables CMR or diagnostic data separately from CDR data. CMR Processing The CMR records store information about the quality of the streamed audio and video of the call. When Unified Communications Manager places or receives a call, the system generates a CDR record when the call terminates. The system writes the CDR to a flat file (text file). Inside the Unified Communications Manager, the call control process generates CDR records. The system writes records when significant changes occur to a given call, such as ending the call, transferring the call, redirecting the call, splitting the call, joining a call, and so forth. When CMR records are enabled, the number of records that are written varies by type of call and the call scenario. When Diagnostics are enabled, the device generates CMR records for each call. The system writes one CMR record for each IP phone that is involved in the call or for each Media Gateway Control Protocol (MGCP) gateway. The system sends these records to EnvProcessCdr where they get written to flat files. Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 365