ETSI EN 301 815-6-2002 宽带综合业务数字网(B-ISDN).2号数字用户信令系统(DSS2)协议.呼叫/连接建立阶段的业务质量等级和参数指示.第6部分:抽象测试套件(ATS)和部分协议额外测试信息实现(PIXIT)形式规范
Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. Two (DSS2) Protocol; Quality of Service Class and Parameters Indication at Call/Connection Establishment; Part 6: Abstract Test Suite (ATS) and Partial Protoc