Q.7 : Signalling systems to be used for international automatic and semi-automatic telephone working

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Q.7 : Signalling systems to be used for international automatic and semi-automatic telephone working

Recommendation Q.7 (11/88)

Approved in 1988-11-25

Status : In force

Access : Freely available items

Available languages and formats :

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Format

Size

Posted

Article Number

English

PDF (acrobat)

69447 bytes

1990-05-29

E 11203

Español

PDF (acrobat)

73782 bytes

1990-05-29

S 11203

Français

PDF (acrobat)

78136 bytes

1990-05-29

F 11203

Access :

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

49471 bytes

1990-05-29

E 11203

Español

Word

62014 bytes

1990-05-29

S 11203

Français

Word

61823 bytes

1990-05-29

F 11203