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| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.030 : Telecommunication services. applications
|
| Number of pages | 24 |
| Modified by | ITU-T Q Supplement 30 (2000-12)
|
| Year | 1990 |
| Document history | |
| Country | International |
| Keyword | CCITT Q.1701;ITU-T 1701;1701;ITU-T Q.1701 |