Integrated Services Digital Network (ISDN); Conference call, add-on (CONF) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network
综合业务数字网(ISDN);电话会议附加(CONF)补充业务;数字用户信令系统第一号(DSS1)协议;第5部分:网络测试套件结构和测试目的(TSS&TP)规范