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  Home : ITU-T : Publications : Recommendations : Q Series : Q.921 : Q.921 (09/97)
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Q.921 : ISDN user-network interface - Data link layer specification  

Recommendation Q.921 (09/97)

Approved in 1997-09-12

Status : In force

 

Table of Contents

 

Summary

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English

PDF Document PDF (acrobat)

2159761 bytes 1998-07-08 E 13327 
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PDF Document PDF (acrobat)

1648147 bytes 1998-07-08 S 13329 
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PDF Document PDF (acrobat)

1725291 bytes 1998-07-08 F 13328 

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Word Document Word

1923584 bytes 1998-07-08 E 13327  Download
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Word Document Word

1964544 bytes 1998-07-08 S 13329  Download
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Word Document Word

2121216 bytes 1998-07-08 F 13328  Download

 

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Updated : 2024-07-26