# Disable Call Timeline for CDR

A CDR (Call Detail Record) is the log entry the phone system saves for every call. The call timeline adds a step-by-step breakdown of what happened during that call (for example, when it rang, when it was answered, whether it was transferred, and when it hung up) and attaches that breakdown to the matching CDR. If your account has no use for that level of detail, you can switch the feature off to reduce how much storage each record uses. This page walks you through disabling it.

:::caution
Turning off the call timeline permanently removes every existing timeline record, and the data cannot be recovered afterward. Back up anything you still need before you continue.
:::

## Disable the call timeline

1. Sign in to the PBX (Private Branch Exchange, your hosted phone system) web portal and open **Reports and Recordings > CDR**.
2. Select the **CDR (Advanced)** tab, then switch **Timeline** off.

   ![The Timeline toggle in the advanced CDR settings, shown in the off position](/images/pbx/disable-timeline.png)

   :::note
   The Timeline switch is a system-wide setting. Turning it off applies to the whole account, not to a single extension or user.
   :::

3. Confirm the change in the dialog that appears.

   ![Confirmation dialog for disabling the timeline, with the option to raise the CDR storage limit](/images/pbx/disable-timeline-confirm.png)

   a. To store more CDRs now that timeline data no longer takes up space, leave the suggested value in place or pick another value from the **Modify Max Number of CDR** list.

   b. Click **OK**.

   :::tip
   With the timeline removed, each CDR takes up less space, so the system suggests a higher **Max Number of CDR**. Keeping the recommended value lets you retain more call records without using extra storage.
   :::

## What happens next

- All current timeline records are deleted, and CDRs generated from future calls will no longer carry timeline data.
- If you changed the CDR storage limit in the confirmation dialog, that new value is applied automatically to the auto-cleanup rule at **System > Storage > Auto Cleanup > CDR Auto Cleanup > Max Number of CDR**. You do not need to update it there by hand.