# Get the Cloud Voice App Server Debug Log

When you run into a problem with the Cloud Voice App, support may ask for the matching server debug log. The PBX (Private Branch Exchange, the phone system that routes your calls) keeps a system log for each day, so you can pull the exact day the issue occurred and hand it over for analysis.

:::note
The debug log is a record of what the server was doing behind the scenes. Support uses it to see errors that are not visible in the app, so the more precisely you match the log to the time of the problem, the faster they can pinpoint the cause.
:::

## Before you start

Write down the date, and roughly the time, when the problem happened. Logs are stored one per day, so knowing the date tells you exactly which one to download.

:::tip
If the problem happened late at night or near midnight, download the day before as well. The event may have started before the date rolled over, and the timestamps on the server may differ from your local clock.
:::

## Download the log

1. Sign in to the PBX web portal and open **Maintenance > System Logs**. Each entry is listed and labeled by the date it covers.
2. Locate the log for the day you hit the problem, then click the download icon ![Download](/images/pbx/download.png) on that row.

   ![Downloading a dated system log from the System Logs list](/images/pbx/download-system-logs.png)

The file saves in `.tar` format (a single archive that bundles many log files together). Send it to Cloud Voice support so they can investigate.

:::note
Send the `.tar` file exactly as it downloaded. You do not need to unpack or rename it, and doing so can make it harder for support to read.
:::

:::caution
Debug logs can contain sensitive details such as phone numbers, account information, and call records. Share the file only through your official Cloud Voice support channel, and do not post it in public forums or chats.
:::