ETSI ETS 300 392-4-1-1999 Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 4: Gateways Basic Operation; Sub-Part 1: Public Switched Telephone Network (PSTN)
European Telecommunications Standards Institute (ETSI)
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ETSI ETS 300 392-4-1-1999
ETSI ETS 300 392-4-1-1999 history
1999ETSI ETS 300 392-4-1-1999 Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 4: Gateways Basic Operation; Sub-Part 1: Public Switched Telephone Network (PSTN)
1998ETSI 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)