# RADIUS CDRs

This article describes how to enable and configure a ProSBC system to capture Call Detail Records (CDRs), using a RADIUS server.\
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\&#xNAN;*Enabling RADIUS*

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- Verify that the box Use CDR behavior is checked.

<figure><img src="https://docs.telcobridges.com/w/images/2/23/EnableRadius_0.png" alt=""><figcaption></figcaption></figure>

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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 RADIUS 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.

4- Verify that the Gateway configuration was successfully updated. message appears.

<figure><img src="https://docs.telcobridges.com/w/images/2/21/EnableCdr_3.png" alt=""><figcaption></figcaption></figure>