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ITU-T E.122
New product
ITU-T E.122
Measures of reduce customer difficulties in the international telephone serviceMore info
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.30 : Switching and signalling systems
|
| Number of pages | 2 |
| Year | 1980 |
| Document history | |
| Country | Switzerland |
| Keyword | CCITT E.122;ITU-T 122;122 |