Ecofax is a non-profit organization (under the French law of 1901) whose mission is to oversee a list designed to block unsolicited faxes, thus adopting the concept of the Safran list. By providing professionals with a standard telephone number (0811460099), the Ecofax association ensures that calls are received 24 hours a day, 7 days a week. These calls allow individuals to register their number on a do-not-sell list for a period of 24 months. At the end of these 24 months, it is necessary to renew this registration by submitting a specific request.