/mcpManager, 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 CDR records are enabled, Call Control generates one or more CDR records for each call. The system sends these records to EnvProcessCdr, where they are written to the flat files. 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 also sends these records to EnvProcessCdr where they get written to flat files. The Unified Communications Manager generates CDR and CMR records but does not perform any post processing on the records. The system writes the records to comma-delimited flat files and periodically passes them to the CDR Repository. The CDR and CMR files represent a specific filename format within the flat file. Filename Format The following example shows the full format of the filename: tag_clusterId_nodeId_datetime_seqNumber • tag—Identifies the type of file, either CDR or CMR. • clusterId—Identifies the cluster or server where the Unified Communications Manager database resides. • nodeId—Identifies the node • datetime—UTC time in yyyymmddhhmm format • seqnumber—Sequence number Two examples of the filenames follow: cdr_Cluster1_01_200404021658_1 cmr_Cluster1_02_200404061011_6125 Flat File Format The CDR and CMR flat files have the following format: • Line 1—List of field names comma separated • Line 2—List of field type comma separated • Line 3—Data comma separated • Line 4—Data comma separated The following example shows a flat file: Line1-“cdrRecordType”,“globalCallID_callManagerId”,“globalCallID_callId”,“origLegCallIdentifier”,... Line2-INTEGER,INTEGER,INTEGER,INTEGER,... Line3-1,1,388289,17586046,... Line4-1,1,388293,17586054,... Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 206 CDR Records Record Processing