ÖNORM EN 300899-3 V 1.1.1:2002-01
Действует
Integrated Services Digital Network (ISDN) - Signalling System No.7 - Interworking between ISDN User Part (ISUP) version 2 and Digital Subscriber Signalling System No. one (DSS1) - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification
