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Fax Glossary

E fax

The technology describing the method of sending and recieving facisimile messages over an internet connection

Energy-saver mode

The condition that exists when the machine is not sending, receiving or printing, and has previously reached operating conditions but is consuming less power than when the machine is in stand-by mode.

ETSI

This is the European Telecommunications Standards Institute which is a group of manufacturers that produces telecommunications standards for use in European countries.

fax (facsimile)

short for facsimile

fax forwarding

A user can program a fax machine to automatically transmit received documents to a specified destination.

fax machine

This is generally a single purpose device that can send and receive facsimiles. The machine is normally able to scan in a document and transmit it over a phone line to another fax machine. Also, it can receive faxes from other machines and print them out.

Grayscale/Halftones

This indicates the reproduction of shades of gray. This feature is used when transmitting photographs or material with halftones. Today's facsimile machines generally offer between a 16- and 64-level halftone capability.

Group 3 Facsimile

This is a standard for facsimile communications over analog telephone lines originally approved by the CCITT in its T.4 and T.30 recommendations in 1980. This standard is supported by almost all of the current install base of fax machines and fax devices and is continuing to be updated.

Group 4 Facsimile

This is a standard for facsimile communications over digital telephone networks which was originally approved in 1984 and updated in 1988. This standard has been adapted more in Europe and Japan than in the United States and is predominately used for fixed point to point high volume communications.

Group dialing

The ability to store multiple numbers under one key for broadcasting or polling.

Halftones

Also known as "grayscale." Refers to reproduction of shades of gray.

Handshake

An exchange of electronic signals preceding a communication between two facsimile machines to determine the proper connection for transmission.

IETF

This is the Internet Engineering Task Force. It is a group which develops standards (called RFCs) for use on networks such as the Internet which use the TCP/IP and other IP network protocols. (see RFC).

ISDN

This is the Integrated Services Digital Network which is an industry standard public digital telephone network. This network is gradually being implemented in the United States and in other countries worldwide as an advanced alternative to the current analog telephone network or PSTN (see PSTN).

ISO

This is the International Standard Organization which is a group which is responsible for the development of many international computer standards.

ITU

This is the International Telecommunications Union, which has been the parent body of the CCITT. As of 1993, all the former CCITT telecommunications standards activities will be handled by the ITU Telecommunications Standardization Sector (ITU-T).

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