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Author | ITU |
---|---|
Editor | ITU |
Document type | Standard |
Format | File |
ICS | 33.040.20 : Transmission systems
|
Number of pages | 22 |
Year | 1990 |
Document history | |
Country | Switzerland |
Keyword | CCITT P.830;ITU-T 830;830;ITU-T P.830 |