What is CDR and CMR?

--> Cisco Unified Communications Manager creates two types of records which store call history and diagnostic information.

1) Call detail records (CDR)— Data records that contain information about each call that was processed by CallManager.

2) Call management records (CMR)— Data records that contain the quality of service (QoS) or diagnostic information about the call. Also referred to as diagnostic records.

--> Both CDRs and CMRs together are referred to as CDR data. CDR data provides a record of all calls that have been made or received by users of the CallManager system.




 --> CDR data is used primarily for generating billing records; however, it can also be used for tracking call activity, diagnosing certain types of problems and capacity planning.

--> CDRs contain information about call origination, call destination, the date and time the call was started, the time it actually connected, and the time it ended.

-->  A call is considered started or originated when the caller goes off-hook. The call is considered ended when either the caller or the called party goes on-hook.

--> CMRs contain information about the amount of data sent and received, jitter, latency, and lost packets.

Md.Kareemoddin

CCIE # 54759

Ref: Cisco

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