Broadband Integrated Services Digital Network (B-ISDN); Signalling System No.7; B-ISDN User Part (B-ISUP); Part 4: Look-ahead without state change for the network node interface [ITU-T Recommendation Q.2724.1 (1996)]
宽带综合业务数字网；七号信令系统；B-ISDN用户部分（B-ISUP）；第4部分:在不改变网络节点接口状态的情况下展望[ITU-T建议Q.2724.1（1996）]

1998-04-01

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No. 7; B-ISDN User Part (B-ISUP) - Part 4: Look-ahead without state change for the network node interface [ITU-T Recommendation Q.2724.1 (1996)] (Endorsement of the English version EN 301029-4 V 1.2.1 (1998-04) as German standard)
宽带综合业务数字网（B-ISDN）——第7号信令系统；B-ISDN用户部分（B-ISUP）.第4部分:在不改变网络节点接口状态的情况下展望[ITU-T建议Q.2724.1（1996）]（认可英文版EN 301029-4 V 1.2.1（1998-04）为德国标准

1999-09-01