from background surfaces with either light characters or symbols on a dark background or dark characters or symbols on a light background. 407.3 Input Controls. At least one input control conforming to 407.3 shall be provided for each function. See 407.3.1, 407.3.2, and 407.3.3. 407.3.1 Tactilely Discernible. Input controls shall be operable by touch and tactilely discernible without activation. Not Applicable 407.3.2 Alphabetic Keys. Where provided, individual alphabetic keys shall be arranged in a QWERTY-based keyboard layout and the “F” and “J” keys shall be tactilely distinct from the other keys. Not Applicable 407.3.3 Numeric Keys. Where provided, numeric keys shall be arranged in a 12-key ascending or descending keypad layout. The number five key shall be tactilely distinct from the other keys. Where the ICT provides an alphabetic overlay on numeric keys, the relationships between letters and digits shall conform to ITU-T Recommendation E.161 (incorporated by reference, see 702.7.1). Not Applicable 407.4 Key Repeat. Where a keyboard with key repeat is provided, the delay before the key repeat feature is activated shall be fixed at, or adjustable to, 2 seconds minimum. Not Applicable 407.5 Timed Response. Where a timed response is required, the user shall be alerted visually, as well as by touch or sound, and shall be given the opportunity to indicate that more time is needed. Not Applicable 407.6 Operation. At least one mode of operation shall be operable with one hand and shall not require tight Not Applicable
412.3 Interference Reduction and Magnetic Coupling. Where ICT delivers output by a handset or other type of audio transducer that is typically held up to the ear, ICT shall reduce interference with hearing technologies and provide a means for effective magnetic wireless coupling in conformance with 412.3.1 or 412.3.2. See 412.3.1. 412.3.1 Wireless Handsets. ICT in the form of wireless handsets conform to ANSI/IEEE C63.19-2011 (incorporated by reference, see 702.5.1). Not Applicable 412.3.2 Wireline Handsets. ICT in the form of wireline handsets, including cordless handsets, shall conform to TIA-1083-B (incorporated by reference, see702.9.1). Not Applicable 412.4 Digital Encoding of Speech. ICT in IP-based networks shall transmit and receive speech that is digitally encoded in the manner specified by ITU-T Recommendation G.722.2 (incorporated by reference, see 702.7.2) or IETF RFC 6716 (incorporated by reference, see 702.8.1). Not Applicable 412.5 Real-Time Text Functionality. Reserved. Not Applicable 412.6 Caller ID. Where provided, caller identification and similar telecommunications functions shall be visible and audible. Not Applicable 412.7 Video Communication. Where ICT provides real-time video functionality, the quality of the video shall be sufficient to support communication using sign language. Not Applicable 413 Closed Caption Processing Technologies 413.1 General. Where ICT displays or processes video with synchronized audio, ICT shall provide closed caption processing technology that conforms to 413.1.1 or 413.1.2.
provide operable parts for the selection of audio description. Chapter 5 Software 501 General 501.1 Scope. The shall apply to software where required by , 255 Chapter 2 (Scoping Requirements), and where otherwise referenced in any other chapter of the Revised 508 Standards or Revised 255 Guidelines. EXCEPTION: Web applications do not have access to platform accessibility services and do not include components that have access to platform accessibility services, they shall not be required to conform to 502 or 503 provided that they conform to Level A and Level AA Success Criteria and Conformance Requirements in WCAG 2.0 (incorporated by reference, see 702.10.1). 502 Interoperability with Assistive Technology 502.1 General. Software shall interoperate with assistive technology and shall conform to 502. 502.2 Documented Accessibility Features. Software with platform features defined in platform documentation as accessibility features shall conform to 502.2. Criteria Supporting Feature Remarks and Explanations 502.2.1 User Control of Accessibility Features. Platform software provide user control over platform features that are defined in the platform documentation as accessibility features. Not Applicable 502.2.2 No Disruption of Accessibility Features. Software shall not disrupt platform features that are defined in the platform documentation as accessibility features. Supported 502.3 Accessibility Services. Platform software and software tools that are provided by the platform developer shall provide a documented set of accessibility services that support applications running on the platform to interoperate with assistive technology and shall conform to 502.3. Applications that are also platforms shall expose the underlying platform accessibility services or implement other documented accessibility services. Not Applicable