To reach the Impact Fax Server Administrator login, open a web browser and type localhost:1172 as a regular website.Enter the password, and click on the 'Submit' button.The Fax Server Administration page appears. All general information about the server can be found on this Main page.Go to the Fax Ports and Channels > Open/Close.Click on the appropriate COM port. NOTE: If the desired COM port is not displayed, make sure that the port is not in use by any other application ( even if an application is closed it could still be using the port )Scroll down on the page, and enter the preferred prefix beside the Phone Nr Prefix. When finished, click on the Submit button.If the user information is successfully modified, the following page appears. Thank you for using Impact Fax Server. Click here to see more tutorials.