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The device MUST present a user-friendly message when a URL is unreachable. 

 3.13. Accessibility

3.13.1 Text-to-speech

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Specification for Devices 2018

Version: 4.11

Date: 2017-09-15

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nameVewd Certify Devices 4.11.pdf
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Specification for Devices 2017

Version: 4.10

Date: 2017-03-16

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nameVewd Certify Devices 4.10.pdf
height250

Specification for Devices 2017

Version: 4.9.0-r1

Date:  2016-11-0

3.13. Accessibility

3.13.1 Text-to-speech

Text-to-Speech (TTS) is an accessibility feature enabling audible spoken words of the text strings shown in an application. Users with impaired vision disability benefit from using Text-to-Speech. Devices MAY choose to support TTS using WAI-ARIA web standards [35]. WAI-ARIA is a set of standards specifying how web applications can define the semantics of a web page, e.g. define that a link is a command, that an area is content, and navigation sequences between areas.
The hints provided by WAI-ARIA are used by the screen reader to enrich the experience and work accordingly to the expectations of web page authors building accessibility-enabled pages.

[35] Accessible Rich Internet Applications (WAI-ARIA) 1.1 https://www.w3.org/TR/wai-aria/

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