See https://help.libreoffice.org/WikiAction/edit/Common/Configuring_Printer_and_Fax_Under_UNIX_Based_Platforms and https://help.libreoffice.org/Common/Configuring_Printer_and_Fax_Under_UNIX_Based_Platforms
In LibreOffice you can also activate an icon for sending faxes to a default fax. To do this, choose Tools - Customize - Toolbars', click Add Commands and add from "Documents" the Send Default Fax icon. You can set which fax is used when this button is pressed under Tools - Options' - LibreOffice Writer - Print.
is totally wrongly styled. dunno what's wrong
Yep -> NEW
as this page was removed in Bug 105004, I'm closing this bug ticket as FIXED (and I fixed the English page manually with my HELPWIKI account)