DIN ETS 300403-6:2000-05
Отменен
Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; signalling network layer for circuit-mode basic call control - Part 6: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (Endorsement of the English version ETS 300403-6:1997 as German Standard)
