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Standard [CURRENT] Article is not orderable

ETS 300121:1992-12

Integrated Services Digital Network (ISDN); application of the ISDN User Part (ISUP) of CCITT signalling system no. 7 for international ISDN interconnections (ISUP version 1)

German title
ISDN; Anwendung des IDSN-Anwenderteils des CCITT-Zeichengabesystems Nr. 7 für internationale ISDN-Verbindungen (ISUP Version 1)
Publication date
1992-12
Original language
English
Pages
9
Publication date
1992-12
Original language
English
Pages
9

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