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Afax modem enables a computer to transmit and receive documents asfaxes on atelephone line. A fax modem is similar to a data modem but is designed to transmit and receive documents to and from a fax machine or another fax modem. Some, but not all, fax modems do double duty as data modems. As with othermodems, fax modems can be internal or external. Internal fax modems are often called fax boards.
In the early 1990s small business PCs commonly had a PC-based fax/modem card and fax software (typicallyWinFax Pro). Largely replaced byemail, PC-based faxing with a fax/modem declined at the turn of the century. Where faxing from a PC is required there are a number ofInternet-based faxing alternatives. Where businesses still had one or more traditional fax machines churning out pages, they were usually outnumbered by PCs processing E-mail.
Computer users may set up a PC fax/modem with card,telephone line access and software. A specialprinter driver may be included to allow treating a fax modem as a printer. Fax integration is available inunified communications (e.g. E-mail, Voice Mail and Fax managed together), in a number ofHosted PBX products where standard features allow users to send a fax by using the fax phone number as the address of a E-mail message, and receive incoming faxes via E-mail with the Fax content presented as aPDF attachment.
Medical systems continue to use this technology into the 21st century, but many home and business users dropped the use of fax modems in favor ofhigh speed internet.[1]