[Code of Federal Regulations]
[Title 36, Volume 3]
[Revised as of July 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 36CFR1194.23]

[Page 500]
 
              TITLE 36--PARKS, FORESTS, AND PUBLIC PROPERTY
 
 CHAPTER XI--ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD
 
PART 1194--ELECTRONIC AND INFORMATION TECHNOLOGY ACCESSIBILITY STANDARDS--Table of Contents
 
                     Subpart B--Technical Standards
 
Sec. 1194.23  Telecommunications products.

    (a) Telecommunications products or systems which provide a function 
allowing voice communication and which do not themselves provide a TTY 
functionality shall provide a standard non-acoustic connection point for 
TTYs. Microphones shall be capable of being turned on and off to allow 
the user to intermix speech with TTY use.
    (b) Telecommunications products which include voice communication 
functionality shall support all commonly used cross-manufacturer non-
proprietary standard TTY signal protocols.
    (c) Voice mail, auto-attendant, and interactive voice response 
telecommunications systems shall be usable by TTY users with their TTYs.
    (d) Voice mail, messaging, auto-attendant, and interactive voice 
response telecommunications systems that require a response from a user 
within a time interval, shall give an alert when the time interval is 
about to run out, and shall provide sufficient time for the user to 
indicate more time is required.
    (e) Where provided, caller identification and similar 
telecommunications functions shall also be available for users of TTYs, 
and for users who cannot see displays.
    (f) For transmitted voice signals, telecommunications products shall 
provide a gain adjustable up to a minimum of 20 dB. For incremental 
volume control, at least one intermediate step of 12 dB of gain shall be 
provided.
    (g) If the telecommunications product allows a user to adjust the 
receive volume, a function shall be provided to automatically reset the 
volume to the default level after every use.
    (h) Where a telecommunications product delivers output by an audio 
transducer which is normally held up to the ear, a means for effective 
magnetic wireless coupling to hearing technologies shall be provided.
    (i) Interference to hearing technologies (including hearing aids, 
cochlear implants, and assistive listening devices) shall be reduced to 
the lowest possible level that allows a user of hearing technologies to 
utilize the telecommunications product.
    (j) Products that transmit or conduct information or communication, 
shall pass through cross-manufacturer, non-proprietary, industry-
standard codes, translation protocols, formats or other information 
necessary to provide the information or communication in a usable 
format. Technologies which use encoding, signal compression, format 
transformation, or similar techniques shall not remove information 
needed for access or shall restore it upon delivery.
    (k) Products which have mechanically operated controls or keys, 
shall comply with the following:
    (1) Controls and keys shall be tactilely discernible without 
activating the controls or keys.
    (2) Controls and keys shall be operable with one hand and shall not 
require tight grasping, pinching, or twisting of the wrist. The force 
required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.
    (3) If key repeat is supported, the delay before repeat shall be 
adjustable to at least 2 seconds. Key repeat rate shall be adjustable to 
2 seconds per character.
    (4) The status of all locking or toggle controls or keys shall be 
visually discernible, and discernible either through touch or sound.

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