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
Junk fax must follow certain guidelines, but there is no individual right to sue the senders. Information on the rules of telemarketing faxes in Canada can be found in the CRTC Unsolicited Telecommunications Rules. Individuals wishing to avoid such faxes may enroll in the CRTC's National Do Not Call List; its effectiveness, however, is a point of controversy. The Office of the Telecommunications Authority (OTA) has implemented regulations to address junk faxes. Complaints will result in disconnection of the offenders' phone service. Junk fax Junk faxes are a form of telemarketing where unsolicited advertisements are sent via fax transmission. Junk faxes are