# How to perform offline authorization

"Itgrix: Offline Authorization" is a Bitrix24 module that enables the "Itgrix: Bitrix24 and Asterisk Integration" application to access the REST API even when there is no connection to the Bitrix authorization server at oauth.bitrix.info.

After installation, the module will autonomously generate an authorization token with a long validity period. By copying this token into the Itgrix connector files, you can authorize the application to use your corporate portal's API within a closed network.

## Step 1 Download the module archive

The authorization module archive will be provided by our manager upon your request

## Step 2 Place the archive in the portal folder

Place the archive in the following Bitrix24 portal directory:

`<portal_directory>/local/modules`

The full path may look like this:

`/home/<user name>/<domain>/local/modules/itgro.authprovider.zip`

Unzip the archive:

```bash
cd <portal_directory>/local/modules
unzip ./itgro.authprovider.zip && rm ./itgro.authprovider.zip
```

## Step 3 Install the application

Open the list of available solutions at:

`https://<domain>/bitrix/admin/partner_modules.php?lang=ru`

Verify that the "Itgrix: Autonomous Authorization (itgro.authprovider)" application is present in the list of solutions. If the solution is marked as not installed, click "Install" in the menu on the left.

Result:

<figure><img src="/files/v1HTOnEZ04hRrVwjdQsS" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/nRDVtVFx1O28sEubBWNQ" alt=""><figcaption></figcaption></figure>

## Step 4 Obtain an authorization code

Before receiving the code, make sure that the Itgrix Connector application is installed on the portal, or the code will be empty.

Open the application page at:

`https://<domain>/bitrix/admin/settings.php?mid=itgro.authprovider`

Verify that the application successfully displays the settings page with the generated authorization token:

<figure><img src="/files/Tf8YLJn6bFkmcg35CbAe" alt=""><figcaption></figcaption></figure>


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