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Standards [CURRENT]

DIN ETS 300179

Integrated Services Digital Network (ISDN); advice of charge: charging information during the call (AOC-D) supplementary service; service description; English version ETS 300179:1992
Edition 1993-09

Standards [CURRENT]

NF Z82-179 ; NF ETS 300179:1996-11-01

Integrated Services Digital Network (ISDN). Advice of charge : charging information during the call (AOC-D) supplementary service. Service description
Edition 1996-11-01

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