Integrated Services Digital Network (ISDN) - Signalling System No. 7 - ISDN User Part (ISUP) version 3 interactions with the Intelligent Network Application Part (INAP) - Part 1: Protocol specification (ITU-T Recommendation Q.1600 (1997), modified) (Endorsement of the English version EN 301070-1 V 1.2.2 (1998-09) as German standard)
综合业务数字网(ISDN).第7号信令系统.ISDN用户部分(ISUP)第3版与智能网应用部分(INAP)的交互.第1部分:协议规范(ITU-T建议Q.1600(1997) 修改)(英文版EN 301070-1 V 1的认可)