4.31.1 General. Public telephones required to be accessible by 4.1 shall comply with 4.31.
4.31.2 Clear Floor or Ground Space. A clear floor or ground space at least 30 in by 48 in (760 mm by 1220 mm) that allows either a forward or parallel approach by a person using a wheelchair shall be provided at telephones (see Fig. 44). The clear floor or ground space shall comply with 4.2.4. Bases, enclosures, and fixed seats shall not impede approaches to telephones by people who use wheelchairs.
4.31.3* Mounting Height. The highest operable part of the telephone shall be within the reach ranges specified in 4.2.5 or 4.2.6. Appendix Note
4.31.4 Protruding Objects. Telephones shall comply with 4.4.
4.31.5 Hearing Aid Compatible and Volume Control Telephones Required by 4.1.
(1) Telephones shall be hearing aid compatible.
(2) Volume controls, capable of a minimum of 12 dbA and a maximum of 18 dbA above normal, shall be provided in accordance with 4.1.3. If an automatic reset is provided then 18 dbA may be exceeded.
4.31.6 Controls. Telephones shall have pushbutton controls where service for such equipment is available.
4.31.7 Telephone Books. Telephone books, if provided, shall be located in a position that complies with the reach ranges specified in 4.2.5 and 4.2.6.
4.31.8 Cord Length. The cord from the telephone to the handset shall be at least 29 in (735 mm) long.
4.31.9* Text Telephones (TTYs) Required by 4.1.
(1) Text telephones (TTYs) used with a pay telephone shall be permanently affixed within, or adjacent to, the telephone enclosure. If an acoustic coupler is used, the telephone cord shall be sufficiently long to allow connection of the text telephone (TTY) and the telephone receiver. Appendix Note
(2) Pay telephones designed to accommodate a portable text telephone (TTY) shall be equipped with a shelf and an electrical outlet within or adjacent to the telephone enclosure. The telephone handset shall be capable of being placed flush on the surface of the shelf. The shelf shall be capable of accommodating a text telephone (TTY) and shall have 6 in (152 mm) minimum vertical clearance in the area where the text telephone (TTY) is to be placed.
(3) Equivalent facilitation may be provided. For example, a portable text telephone (TTY) may be made available in a hotel at the registration desk if it is available on a 24-hour basis for use with nearby public pay telephones. In this instance, at least one pay telephone shall comply with paragraph 2 of this section. In addition, if an acoustic coupler is used, the telephone handset cord shall be sufficiently long so as to allow connection of the text telephone (TTY) and the telephone receiver. Directional signage shall be provided and shall comply with 4.30.7. Appendix Note