Title: on occasion i&#x27;ve had need to send faxes. most of the time i don&#x27;t have access to a fax machine and so i end up paying some service that&#x27;ll let me upload a pdf and charge me $10 for 50 pages.<p>what is it about fax technology that i can&#x27;t just program my phone to send a fax? what are fax machines doing that i can&#x27;t emulate in software???
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