Business telecommunications (BT) - Open Network Provision (ONP) technical requirements; 2048 kbit/s digital unstructured leased line (D2048U) - Connection characteristics; English version ETS 300247:1993/A1:1995
Access and Terminals (AT) - 2048 kbit/s digital unstructured leased line (D2048U) - Connection characteristics (Endorsement of the English version EN 300247 V 1.2.1 (2001-07) as German version)— 1 стр.
