ITU-R TF.1552
Time scales for use by standard-frequency and time-signal services
现行
发布日期 :
2012-02-01
实施日期 :
ITU-T E.210
Ship station identification for VHF/UHF and maritime mobile-satellite services
现行
发布日期 :
2025-11-01
实施日期 :
ITU-T E.526
Dimensioning a circuit group with multi-slot bearer services and no overflow inputs
现行
发布日期 :
2012-03-01
实施日期 :
ITU-T F.120
Ship station identification for VHF/UHF and maritime mobile-satellite services
现行
发布日期 :
2025-11-01
实施日期 :
ITU-T F.80
Basic requirements for interworking relations between the international telex service and other services
现行
发布日期 :
2011-10-01
实施日期 :
ITU-T I.257.1
Additional information transfer supplementary services : User-to-User Signalling (UUS)
现行
发布日期 :
2003-10-01
实施日期 :
ITU-T O.220
Framework for the End-to-End QoS measurement and supervision for leased circuit services
现行
发布日期 :
2016-03-01
实施日期 :
ITU-T Q.81.2
Stage 2 description for number identification supplementary services : Multiple subscriber number
现行
发布日期 :
2004-02-01
实施日期 :
ITU-T Q.84.2
Stage 2 description for multiparty supplementary services : Three-party service
现行
发布日期 :
2017-10-01
实施日期 :
ITU-T Q.85.1
Stage 2 description for community of interest supplementary services : Closed user group
现行
发布日期 :
2004-02-01
实施日期 :
ITU-T Q.86.4
Stage 2 description for charging supplementary services : International Freephone Service (IFS)
现行
发布日期 :
2005-06-01
实施日期 :