E.420 : Checking the quality of the international telephone service

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E.420 : Checking the quality of the international telephone service - General considerations

Recommendation E.420 (11/88)

Approved in 1988-11-25

Status : In force

Access : Freely available items

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Format

Size

Posted

Article Number

English

PDF (acrobat)

117249 bytes

1989-01-31

E 14858

Español

PDF (acrobat)

128882 bytes

1989-01-31

S 14858

Français

PDF (acrobat)

139464 bytes

1989-01-31

F 14858

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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

1655896 bytes

1989-01-31

E 14858

Español

Word

1668294 bytes

1989-01-31

S 14858

Français

Word

1721156 bytes

1989-01-31

F 14858