# Enable Call Quality Monitoring

If you run into problems on your calls, the Cloud Voice App can record what happened under the hood. With call quality monitoring switched on, your extension gathers performance data during each call and produces a report our support team can use to pinpoint the cause. This page walks you through enabling the feature.

## Before you begin

- Your PBX (Private Branch Exchange, the server that runs your phone system) must be running firmware **84.23.0.123** or later.
- An administrator must have granted your account permission to turn on call quality monitoring for your own extension. If the option is missing, ask your administrator to enable it for you.

## Turn on monitoring

1. Sign in to the Cloud Voice App and open **Preferences > Features**.
2. Find the **Monitor Call Quality** section and set it up as follows.

   ![The Monitor Call Quality settings, showing the enable checkbox and the monitoring end time selector](/images/pbx/web-monitor-call-quality.png)

   a. Select the **Monitor Call Quality** checkbox.

   b. Open the **Monitoring End Time** drop-down and choose when monitoring should stop.

   :::note
   You can schedule monitoring to run for up to 7 days.
   :::
3. Click **Save**.

## What happens next

From now until the end time you set, every call your extension places or answers in the Cloud Voice App is measured automatically, and a quality report is built for each one. Open the matching entry in your call log to review it.

:::tip
Monitoring switches off on its own once the end time passes. Set the end time far enough out to cover when the problem is likely to happen again, otherwise those later calls will not produce a report and you will have to turn monitoring back on.
:::

For a breakdown of the report and the metrics it contains, see [Access Call Quality Monitoring Report](/pbx/web-client-user-guide/access-call-quality-monitoring-report/).