Internet fax

Internet fax, e-fax, or online fax is the use of the Internet Protocol to send a fax (facsimile), rather than using only phone networks (traditional faxing) with a fax machine. Internet fax includes "web fax" and "email fax," along with VoIP fax, which is the use of Voice over Internet Protocol to send a fax. Internet fax should not be confused with IP fax.