T.37


T.37 is an ITU standard which deals with sending fax messages using email. It is also referred to as, "Internet Fax", or "Store-forward-fax".
A fax machine supporting T.37 will send a fax to an email address by converting the document to a TIFF-F image, attaching it to an email, and sending the document. The destination fax receives the email and prints the attached document.
To interface with regular fax machines: