Hylafax: Sending fax using command line

Hi, We do have an Elastix server that has hylafax. We need a step by step guide to teach us how to send a pdf fax using sendfax command and command lines for the following scenarios: 1- We want to send a pdf file ([login to view URL]) which is located in the root directory To this fax number 35487454. 2- We want to send a pdf file ([login to view URL]) as a fax (which is also located in the root directory) to these fax numbers 12365478, 78965432, 14785236 3- Let say that we have 3 fax extensions (100, 101, 102) and we want to send 3 different faxes using different pdf files ([login to view URL],[login to view URL],[login to view URL] which located in the root directory) to these different fax numbers 98712365, 45636978, 74136945 at the same time. Note: - During sending the fax, how we determine the status of the sending process. - After send the fax, how we know that it has sent correctly. - We need a step by step instructions of using command lines to send the above scenarios. - Finally, please test your instructions before you send it to me.