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  Home : ITU-T : Publications : Recommendations : F Series : F.921 : F.921 (08/18)
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F.921 : Audio-based indoor and outdoor network navigation system for persons with vision impairment

Recommendation F.921 (08/18)

Approved in 2018-08-29

Status : In force

 

Table of Contents

 

Summary

Access : Freely available items

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Format Size Posted Article Number
English

PDF Document PDF (acrobat)

538451 bytes 2018-10-22 E 42512 
Arabic

PDF Document PDF (acrobat)

729058 bytes 2019-03-07 A 42793 
Chinese

EPUB Document EPUB

10046621 bytes 2019-10-31 C 42677 

PDF Document PDF (acrobat)

773814 bytes 2019-01-16  
Español

EPUB Document EPUB

3492005 bytes 2019-10-31 S 42712 

PDF Document PDF (acrobat)

443064 bytes 2019-01-24  
Français

EPUB Document EPUB

3496068 bytes 2019-10-31 F 42678 

PDF Document PDF (acrobat)

459405 bytes 2019-01-16  

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TIES users

Available languages and formats :
 
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Format Size Posted Article Number TIES users
English

Word 2007 Document Word 2007

 118749 bytes 2018-10-22 E 42512  Download
Arabic

Word 2007 Document Word 2007

 107950 bytes 2019-03-07 A 42793  Download
Chinese

Word 2007 Document Word 2007

 147028 bytes 2019-01-16 C 42677  Download
Español

Word 2007 Document Word 2007

 99999 bytes 2019-01-24 S 42712  Download
Français

Word 2007 Document Word 2007

 101684 bytes 2019-01-16 F 42678  Download

 

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Updated : 2019-10-31