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� Home : ITU-T : Publications : Recommendations : Q�Series : Q.29 : Q.29 (11/88)
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Q.29�:�Causes of noise and ways of reducing noise in telephone exchanges �

Recommendation Q.29 (11/88)

Approved in 1988-11-25

Status : In force

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Format Size Posted Article Number
English

PDF Document PDF (acrobat)

57792 bytes 1990-05-29 E�15219�
Espa�ol

PDF Document PDF (acrobat)

64001 bytes 1990-05-29 S�15219�
Fran�ais

PDF Document PDF (acrobat)

64989 bytes 1990-05-29 F�15219�

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Format Size Posted Article Number TIES users
English

Word Document Word

38108 bytes 1990-05-29 E�15219� Download
Espa�ol

Word Document Word

49235 bytes 1990-05-29 S�15219� Download
Fran�ais

Word Document Word

48959 bytes 1990-05-29 F�15219� Download

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