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Defines the basic requirements for an instrument to measure noise and other interfering signals on telephone circuits.
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.01 : Telecommunication systems in general
|
| Number of pages | 13 |
| Replace | ITU-T O.41 (1988) |
| Year | 1990 |
| Document history | ITU-T O.41 (1994-10) |
| Country | Switzerland |
| Keyword | CCITT O.41;ITU-T 41;41;ITU-T O.41 |