Glossary

Accessible.

Telecommunications equipment or customer premises equipment that comply with the requirements of subpart C of this part [of Section 255 of the Telecommunications Act of 1996].

Digital Subscriber Line (DSL).

A set of high-speed digital telecommunications lines that usually use regular telephone wiring but require special equipment at the user’s end.  The most common form now available to residential customers is Asymmetrical Digital Subscriber Line (ADSL), which has a faster downstream speed than upstream, making it suitable for web browsing and low-speed video applications.

Alternate formats.

Different means of providing access to printed material.  Alternate formats may include, but are not limited to, Braille, ASCII text, large print, and audiocassette recording.

Alternate modes.

Different means of providing information to users of products including product documentation and information about the status or operation of controls.  Examples of alternate modes may include, but are not limited to, voice, fax, telecommunications relay service, TTY, Internet posting, captioning, text-to-speech synthesis, and video description.

Buffer dialing.

The method of dialing a phone whereby the user enters all the digits and then enters a “dial” command.  Before this command is issued, the user may correct the string of digits.

Compatible.

Telecommunications equipment or customer premises equipment that comply with the requirements of Subpart D [of Section 255 of the Telecommunications Act of 1996].

Customer premises equipment.

Equipment employed on the premises of a person (other than a carrier) to originate, route, or terminate telecommunications. [47 U.S.C. 153 (14) ]

Dual-tone multifrequency (DTMF).

The system of tone pairs used in touch-tone devices.

Integrated Services Digital Network (ISDN).

A digital telecommunications line capable of carrying 128 kilobits per second.

Interactive Voice Response (IVR)

Systems, also called audiotext, that allow for touch-tone interaction with voice menus to receive voice information over a phone line.

Manufacturer.

A manufacturer of telecommunications equipment or customer premises equipment that sells to the public or to vendors that sell to the public; a final assembler.

Modality.

A specific sensory or motor channel, such as hearing, vision, touch, speech, and arm/hand/finger movement.

Model.

An individual and specific instance of a product type.

Peripheral devices.

Devices employed in connection with telecommunications equipment or customer premises equipment to translate, enhance, or otherwise transform telecommunications into a form accessible to individuals with disabilities.

Product.

Telecommunications equipment or customer premises equipment.

Product type.

A category of products that are similar in design and function, such as “cordless telephones” and “answering machines.”

Readily achievable.

Easily accomplishable and able to be carried out without much difficulty or expense. [42 U.S.C.12181 (9) ]

Redundancy.

The provision of a product’s input, control, and output functions through multiple modalities so as to maximize its ability to be used by people with disabilities.

Selectability.

The ability, comprehensible to the user, to choose among a product’s redundant modalities.

Specialized customer premises equipment.

Equipment, employed on the premises of a person (other than a carrier) to originate, route, or terminate telecommunications, which is commonly used by individuals with disabilities to achieve access.

Telecommunications.

The transmission, between or among points specified by the user, of information of the user's choosing, without change in the form or content of the information as sent and received.  [47 U.S.C. 153(43) ]

Telecommunications equipment.

Equipment, other than customer premises equipment, used by a carrier to provide telecommunications services, and includes software integral to such equipment (including upgrades).  [ 47 U.S.C. 153 (45) ]

Telecommunications Relay Service (TRS).

The operator-based service that provides a translation medium between users of TTYs and users of standard voice telephones.

Telecommunications service.

The offering of telecommunications for a fee directly to the public, or to such classes of users as to be effectively available directly to the public, regardless of the facilities used. [ 47 U.S.C. 153 (46) ]

TTY.

An abbreviation for teletypewriter. Machinery or equipment that employs interactive text based communications through the transmission of coded signals across the standard telephone network. TTYs can include, for example, devices known as TDDs (telecommunication display devices or telecommunication devices for deaf persons) or computers with special modems. TTYs are also called text telephones.

Usable.

Means that individuals with disabilities have access to the full functionality and documentation for the product, including instructions, product information (including accessible feature information), documentation, and technical support functionally equivalent to that provided to individuals without disabilities.