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| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.35 : Telephone networks |
| Replace | ITU-T Q.1970 (2001-07) |
| Year | 2006 |
| Document history | ITU-T Q.1970 (2006-09) |
| Country | International |
| Keyword | CCITT Q.1970;ITU-T 1970;1970;ITU-T Q.1970 |