Integrated Services Digital Network (ISDN) - Conference call, add-on (CONF) supplementary service - Digital Subscriber Signalling System No. one (DSS 1) protocol - Part 1: Protocol specification; English version ETS 300185-1:1993 + Corrigendum September 1993
German title
ISDN - Dienstmerkmal Konferenz - Digitales Zeichengabeverfahren Nr. 1 für Anschlußleitungen (DSS1) - Teil 1: Protokollspezifikation; Englische Fassung ETS 300185-1:1993 + Corrigendum September 1993
Publication date
1994-04
Original language
English
Pages
60
Publication date
1994-04
Original language
English
Pages
60
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