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UNE-ETS 300451:1997
BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY QUALITY VOICE BANDWIDTH 4-wire analogue leased line (A40). Connection characteristics and network interface presentation.
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| Publisher | Asociacion Espanola de Normalizacion y Certificacion (AENOR) |
| Publication Date | 11/20/1997 |
| Page Count | 38 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |