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Standards [CURRENT]

DIN ETS 300658

Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Transaction Capabilities (TC) version 2 - Test responder specification; English version ETS 300658:1996
Edition 1997-07

Standards [CURRENT]

DIN ETS 300492

Public Switched Telephone Network (PSTN) - Category II specification for 14400, 12000, 9600, 7200 and 4800 bits per second duplex modems standardized for use on the PSTN; English version ETS 300492:1996
Edition 1997-08

Standards [CURRENT]

DIN ETS 300614

Digital cellular telecommunications system (Phase 2) - Security management; English version ETS 300614:1996
Edition 1997-07

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