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 EN 300403-6 V 1.2.2 (2000-02) as German Standard)
综合业务数字网(ISDN).数字用户信号发送系统第1号(DSS1)协议;电路模式基本呼叫控制用信令网络层.第6部分:网络测试套件结构和测试目的(TSS&TP)规范(英文版EN 30040的认可)