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: Q.500 (11/88) |
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| Q.500 : Digital local, combined, transit and international exchanges - Introduction and field of application |
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Recommendation Q.500 (11/88)
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Approved in 1988-11-25
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Status : In force
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Replaces Q.501 (1984) and Q.511 (1984)
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Access : Freely available items
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Available languages and formats :
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Click on the selected format
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Format |
Size |
Posted |
Article Number |
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| English |
 PDF (acrobat)
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58837 bytes |
1990-01-04 |
E 12625 |
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| Español |
PDF (acrobat)
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62466 bytes |
1990-01-04 |
S 12625 |
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| Français |
PDF (acrobat)
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63949 bytes |
1990-01-04 |
F 12625 |
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Available languages and formats :
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Word 