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Standards [CURRENT]

DIN ETS 300360

Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Signalling interworking specification for ISDN User Part (ISUP) version 2; English version ETS 300360:1995
Edition 1995-11

Standards [CURRENT]

DIN ETS 300343

Integrated Services Digital Network (ISDN) - Signalling interworking specification for ISDN User Part (ISUP) version 1; English version ETS 300343:1994
Edition 1995-01

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