基于软交换的业务技术要求 第1部分：业务体系
Technical requirements of the soft switch based services part 1:Services system
2005-09-01
YD/T 1388.6-2005
基于软交换的业务技术要求 第6部分：视频多媒体业务
Technical requirements of the soft switch based services part 6: Video multimedia services
2005-09-01
YD/T 1388.5-2005
基于软交换的业务技术要求 第5部分：点击拨号类业务
Technical requirements of the soft switch based services part 5: click to dial services
2005-09-01
YD/T 1388.4-2005
基于软交换的业务技术要求 第4部分：多方通话类业务
Technical requirements of the soft switch based services part 4: Multiparty call services
2005-09-01
YD/T 1388.3-2005
基于软交换的业务技术要求 第3部分：呼叫前转类业务
Technical requirements of the soft switch based services part 3: Call forwarding services
2005-09-01
GB/T 32657.2-2016
自动交换光网络（ASON）节点设备技术要求 第2部分：基于OTN的ASON节点设备技术要求
Technical requirements for automatically switched optical network (ASON) node—Part 2：Technical requirements for OTN-based ASON node
2016-04-25
YD/T 1248.2-2003
固定电话网短消息业务 第2部分：短消息终端和短消息中心之间的传输协议技术要求
Short Message Service Based on PSTN Part 2: Technical Requirement of Transmission Protocol between short Message Terminal Equipment and Center