Fax July 1996. A major breakthrough in the development of the modern facsimile system was the result of digital technology, where the analog signal from scanners was digitized and then compressed, resulting in the ability to transmit high rates of data across standard phone lines. The first digital fax machine was the Dacom Rapidfax first sold in late 1960s, which incorporated digital data compression technology developed by Lockheed for transmission of images from satellites. Group 3 and 4 faxes are digital formats, and take advantage of digital compression methods to greatly reduce transmission times. Fax Over IP (FoIP) can transmit and
Internet fax the information is sent directly over the telephone network, not over the Internet. This helps to communicate from remote places to the fax machine's location. In this method, smartphones are used to send and receive fax without the need to have any landline phone or any extra hardware. There are several fax applications (for both Android and iOS) that handle the mobile-based faxing. How does it work? First of all, users must install the fax app on their smartphones and have an active subscription to that online fax service provider. After that, the phone's camera is used as a scanner