Using eFax to send a fax
To start make sure you have an efax account. IT manages new efax accounts.
Once you have a login, proceed to https://www.efaxcorporate.com/ and click login. After that it should bring you to a page that looks like the one below make sure "user" is selected, and use your credentials to login.
Once you are logged in you should see a page that looks like the one below, Click on "Send Faxes" at the top.
It will then bring up a dialog box where you can input the recipient's name and information. Make sure to click the "Add +" button so that the recipient gets added to the list below as seen in the picture below, you may also choose to send yourself a reciept of the fax when it completes by selecting your email from the drop down box. After that click the "Choose Files" button to select the file you wish to send. Then hit "Send Fax"