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Author | ITU |
---|---|
Editor | ITU |
Document type | Standard |
Format | File |
ICS | 33.040.30 : Switching and signalling systems
|
Number of pages | 83 |
Year | 1980 |
Document history | |
Country | Switzerland |
Keyword | CCITT Q.783;ITU-T 783;783;ITU-T Q.783 |