At my work, we have a huge costly multi-function printer that does everything a printer can dream of. It is hooked up directly on a dedicated fax telephone line. Now we receive an increasing amount of unsolicited fax mail. We are in Canada, there are no regulations about these so we can't simply hope that the governement shuts them down.
What would be the best solution to block these incoming faxes? The first idea was to setup a filter box to handle traffic but I'd like to have experts opinion before starting to spend money.