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Cisco Call Termination Cause Codes, Values and Descriptions

Cisco Call Manager’s main purpose is to route calls from one endpoint to another, usually called the originating device to the destination device. While doing this there are practically an unlimited amount of things that could go wrong. Cisco decided to use what they call a “call termination value” to explain what the issue was. This value is typically numeric, and refers to a preassigned value.

These codes are typically seen in CDRs (Call Detail Records) that are produced by CUCM. CUCM produces CDRs so that they can be read by analytic software (like VoIP Detective), to ultimately produce human readable reports. Read more about Cisco CDRs here.

oriCause_value

This means that the cause code was produced by the originating side. The originating side could refer to a phone that started the call, or the gateway that first received an inbound call (among other things).

destCause_value

This means that the cause code was produced by the destination side. The destination side could refer to a phone that received the call, or the gateway that received an outbound call (among other things). An example would be a destCause_value of

Below is the complete list of cause code values, and where appropriate, I’ve given some explanation as to the meaning.
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Reading and Understanding CUCM CDR files

Reading and Understanding CUCM CDR files

CDR files – an overview

Cisco’s Unified Communications Manager (CUCM) is build to allow third party applications to provide call reports. This means that Call Manager will provide raw call logs, called CDRs (Call Detail Records) to whatever destination the engineer specifies. In fact, you can have up to three report destinations defined in Call Manager, allowing for multiple call reporting servers. Once you specify the address of your call reporting server inside of CUCM, it will begin pushing CDR files to that server. I believe it’s also important to mention that you can use the CDR Analysis and Reporting (CAR) to extract CDR files from CUCM. This will allow you to either manually review the CDR, or to manually feed it to a reporting / analyzing program.

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