NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Standards
[Withdrawn]
DIN ETS 300138-1
DIN ETS 300138-1
Integrated Services Digital Network (ISDN) - Closed User Group (CUG) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; English version ETS 300138-1:1997
Title (German)
ISDN - Dienstmerkmal "Geschlossene Benutzergruppe"; Digitales Zeichengabeverfahren Nr. 1 für Anschlußleitungen (DSS1) - Teil 1: Protokollspezifikation; Englische Fassung von ETS 300138-1:1997