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| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.40 : Data communication networks |
| Replaced by | ITU-T X.1520 (2014-01) |
| Year | 2011 |
| Document history | ITU-T X.1520 (2014-01) |
| Country | International |
| Keyword | CCITTX1520,ITUT1520,ITUTX1520,1520,TX1520,X1520,ITU1520,T1520 |