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Author | ITU |
---|---|
Editor | ITU |
Document type | Standard |
Format | File |
ICS | 33.040.35 : Telephone networks
|
Year | 2005 |
Document history | |
Country | International |
Keyword | CCITT J.171;CCITT J.171.1;ITU-T J.171;ITU-T 171;171;ITU-T J.171.1 |