Integrated Services Digital Network (ISDN) - Signalling System No. 7; Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301062-4 V 1.1.1 (2000-10) as German Standard)
综合业务数字网(ISDN)-第7号信令系统;用专用网Q参考点信号系统1号(PSS1)信息流支持虚拟专用网(VPN)应用.第4部分:抽象测试套件(ATS)和部分协议实现额外信息