Faxing is the process of transmitting documents electronically from one location to another, either over a traditional telephone line or through an online fax service. The term fax is short for facsimile, meaning an exact reproduction of a document.
In a traditional setup, a fax machine scans a paper document, sends it over a phone line to another fax machine, and the receiving machine prints an exact copy. Modern online fax services perform the same function digitally, allowing users to send and receive faxes from computers, phones, or email without requiring fax hardware or a dedicated phone line.
