DIN EN 300443-6:2003
宽带综合业务数字网(B-ISDN).数字用户信令系统No.2(DSS2)协议.基本呼叫/承载控制用B-ISDN用户网络接口层3规范.第6部分:网络用抽象试验组(ATS)及部分协议执行附加检测信息形式表规范(PIXIT)
Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol - B-ISDN user-network interface layer 3 specification for basic call/bearer control - Part 6: Abstract Test Suite (ATS) and partial Protoc