Junk fax unlawful to send an individual an unsolicited sales and marketing fax without any prior consent of the customer. If the fax receiver is a company or corporate instances, fax communications are permitted unless the subscriber has previously notified the caller that such communications should not be sent on that line; or the subscriber’s line is listed in the register kept under regulation 25 of PECR. This register is maintained on behalf of OFCOM by the Direct Marketing Association and is branded as the Facsimile Preference Service (“FPS”). Unsolicited faxes are regulated by the Canadian Radio-television and Telecommunications Commission (CRTC) and
Internet fax send. The document is usually converted to PDF or TIFF format and sent by the Web server to the fax server, which then transmits it to the receiving fax machine via the telephone network. The sender usually receives confirmation that transmission was successful, either in the web interface or by email. An Internet fax service allows faxes to be sent from a computer via an Internet connection, thanks to a Web interface usually available on the supplier's Web site. This technology has many advantages: Early email-to-fax services such as The Phone Company and Digital Chicken were developed in the mid-1990s.