# Call Detail Records (CDR)

*To enable CDR:*

1- Select Gateway from the navigation panel.

<figure><img src="https://docs.telcobridges.com/w/images/3/31/EnableCdr_0.png" alt=""><figcaption></figcaption></figure>

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2- To enable CDR, select Use CDR behavior.

3- Configure the CDR behavior in the CDR Options section:

* Enable periodic CDR update will add one entry in the CDR per Periodic CDR update time, in minutes.
* Select one of the Text CDR mode from the CDR Mode :
  * Text CDR only: Will store the CDRs in a flat file.
  * RADIUS CDR only: Will send the CDR to an external RADIUS Server.
  * Text and RADIUS CDR: Will store the CDRs in a flat file and send the CDR to an external RADIUS Server.
  * RADIUS CDR with Text CDR Fallback: Will send the CDR to an external RADIUS Server and if the RADIUS server cannot handle the load of CDRs, they will be stored in a flat file.
* Click Save to save your changes.

<figure><img src="https://docs.telcobridges.com/w/images/3/3f/EnableCdr_1.png" alt=""><figcaption></figcaption></figure>

3- Expand the Text CDR parameters section

* Configure the Text CDR parameters as required. Refer to the description of parameters described below.

<figure><img src="https://docs.telcobridges.com/w/images/c/c7/EnableCdr_2.png" alt=""><figcaption></figcaption></figure>

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