ETSI ETS 300 392-11-21
- Draft Edition 1Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 11: Supplementary services stage 2; Sub-part 21: Ambience Listening (AL)
- standard by European Telecommunications Standards Institute, 09/01/1996
- Publisher: ETSI
$13.00$25.50
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