Q.31 : Noise in a national 4-wire automatic exchange

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Q.31 : Noise in a national 4-wire automatic exchange

Recommendation Q.31 (11/88)

Approved in 1988-11-25

Status : In force

Access : Freely available items

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Article Number

English

PDF (acrobat)

46910 bytes

1990-05-29

E 15228

Español

PDF (acrobat)

52387 bytes

1990-05-29

S 15228

Français

PDF (acrobat)

52562 bytes

1990-05-29

F 15228

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TIES users

Available languages and formats :

Click on the selected format
and language to get the document

Format

Size

Posted

Article Number

TIES users

English

Word

31013 bytes

1990-05-29

E 15228

Español

Word

41012 bytes

1990-05-29

S 15228

Français

Word

39663 bytes

1990-05-29

F 15228