To add a new extension to the system, click on the 
button at the bottom-right corner of the Extensions list panel, as shown below:
A new window will open. Enter the extension number and click on the button. If the extension number exists already in the system, you will be prompted in order to avoid creating duplications.
After clicking on the button, the Extension Properties window will appear, allowing you to configure the properties of the new extension.
Enter the required details and click on the button to apply the changes.
 | The properties added in this section will be displayed when using the Directory via the web interface. |
The new extensions you have added will be displayed in the Extensions list panel, as shown below:
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