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DIN ETS 300399-1
Frame relay services - Part 1: General description; English version ETS 300399-1:1995
Edition
1995-11
DIN ETS 300048
Integrated Services Digital Network (ISDN) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the B-channel of the user access, basic and primary rate; English version ETS 300048:1997
Edition
1998-08
DIN ETS 300049
Integrated Services Digital Network (ISDN) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the D-channel of the user access; basic and primary rate; English version ETS 300049:1997
Edition
1998-08
