PRETS 300 392-4-1-1998 Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 4: Gateways Basic Operation; Sub-part 1: Public Switched Telephone Network (PSTN)
ETSI - European Telecommunications Standards Institute
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PRETS 300 392-4-1-1998
PRETS 300 392-4-1-1998 history
1998PRETS 300 392-4-1-1998 Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 4: Gateways Basic Operation; Sub-part 1: Public Switched Telephone Network (PSTN)
1997PRETS 300 392-4-1-1997 Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 4: Gateways Basic Operation; Subpart 1: Public Switched Telephone Network (PSTN)