DIN EN 301145-5:2000 宽带综合业务数字网(B-ISDN).数字用户用1号信令系统(DSS1)协议.电信业务.第5部分:服务提供者终端(SPT)试验组结构和试验目的规范
Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; teleaction service - Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the Service Provider Terminal (SPT) (Endorsement of t