Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Cordless terminal authentication supplementary services - Part 1: Test Suite structure and Test Purposes (TSS&TP) specification for the VPN "b" service entry point (Endorsement of the English version EN 301492-1 V 1.1.2 (2000-12) as German standard)
专用综合业务网(PISN)——交换间信令协议;无绳终端认证补充业务第1部分:VPN“b”业务入口点的测试套件结构和测试目的(TSS&TP)规范