DIN ETS 300179 : 1993
DIN ETS 300179 : 19931472471
DIN ETS 300179 : 1993
Title: Integrated Services Digital Network (ISDN); advice of charge: charging information during the call (AOC-D) supplementary service; service description; English version ETS 300179:1992
Year: 1993
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN); advice of charge: charging information during the call (AOC-D) supplementary service; service description; English version ETS 300179:1992
Year: 1993
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
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