Integrated Services Digital Network (ISDN) - Call Hold (HOLD) supplementary service - Digital Subscriber Signalling System No one (DSS1) protocol - Part 1: protocol specification
German title
Integrated Services Digital Network (ISDN) - Dienstmerkmal Halten (HOLD) - Digitales Zeichengabeverfahren Nr.1 für Anschlussleitungen (DSS1) - Teil 1: Protokoll Spezifikation
Publication date
2001-05-01
Original language
French
Pages
19
Publication date
2001-05-01
Original language
French
Pages
19
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