YD/T 2008-2009
基于统一IMS的业务技术要求 多媒体彩铃业务（第一阶段）
Technical Requirement for Services based on the Unified IMS Customized Multimedia Alerting Service (Release 1)
2009-12-11
YD/T 1931-2009
基于统一IMS的业务技术要求 呼叫前转类业务（第一阶段）
Technical Requirements of Services based on the Unified IMS Call Forwarding Service(Release 1)
2009-06-15
YD/T 2295-2011
基于统一IMS的业务技术要求 点击拨号业务（第一阶段）
Technical requirements of services based on the unified IMS. Click to dial service(Release 1)
2011-05-18
YD/T 1933-2009
基于统一IMS的业务技术要求 IP Centerex业务（第一阶段）
Technical Requirements of Services Based on the Unified IMS IP Centrex Service(Release 1)
2009-06-15
YD/T 2010-2009
基于统一IMS的业务技术要求 多媒体会议业务（第一阶段）
Technical Requirements of Services based on the Unified IMS Multimedia Conferencing Service (Release 1)
2009-12-11
YD/T 2179-2010
基于IMS的SIMPLE即时消息业务技术要求
Technical requirements for IMS based SIMPLE IM service
2010-12-29
YD/T 1932-2009
基于统一IMS的业务技术要求 标识显示及限制类业务（第一阶段）
Technical Requirements of Services based on the Unified IMS Identification Presentation and Restriction Service(Release 1)
2009-06-15
YD/T 3196-2016
基于统一IMS（第二阶段）的业务技术要求 短消息业务
The technical specification for unified IMS(Phase 2) based services-Short message service
2016-10-22
YD/T 3195-2016
基于统一IMS（第二阶段）的业务技术要求 总体
The technical specification for unified IMS(Phase 2) based services-General part
2016-10-22
YD/T 2011-2009
基于统一IMS的业务技术要求 呼叫等待与呼叫保持业务（第一阶段）
Technical Requirements of Services based on the Unified IMS Call Waiting (CW) and Call HOLD (HOLD) Services (Release 1)
2009-12-11
YD/T 3556-2019
基于IMS的VoWiFi业务互通技术要求
Service Interworking Technical Requirements of VoWiFi based on IMS
2019-11-11
YD/T 2181-2010
基于IMS的呈现(Presence)业务技术要求(第二阶段)
Technical requirements for presence service basing on IMS (phase Ⅱ)
2010-12-29
YD/T 1802-2008
基于IP多媒体子系统（IMS）的呈现（Presence）业务技术要求（第一阶段）
Technical Requirements for Presence Service Basing on IMS(Phase Ⅰ)
2008-07-28
YD/T 2013-2009
基于统一IMS的业务技术要求 恶意呼叫追踪和匿名呼叫拒绝业务(第一阶段)
Technical Requirements of Services based on the Unified IMS Malicious Call Identification (MCID) and Anonymous Communication Rejection (ACR) Services (Release 1)
2009-12-11
YD/T 2184-2010
基于IMS的组管理(XDM)业务技术要求(第二阶段)
Technical requirements for IMS based group management service (Phase 2)
2010-12-29
YD/T 2182-2010
基于IMS的即按即说（PoC）业务总体技术要求（第二阶段）
Technical requirement for IMS based PoC service general(Phase 2)
2010-12-29
YD/T 2183-2010
基于IMS的即按即说（PoC）业务设备技术要求（第二阶段）
Technical requirement for IMS based PoC service equipment(Phase 2)
2010-12-29
YD/T 1522.5-2010
会话初始协议（SIP）技术要求 第5部分：统一IMS网络的SIP协议
Technical requirements for session initiation protocol Part 5 session initiation protocol based on the unified IMS
2010-12-29
YD/T 2457.1-2013
基于统一IMS的业务测试方法 多媒体电话业务(第一阶段) 第1部分:基本业务和必选补充业务
Test method of services based on the unified IMS multimedia telephony service (release 1) Part 1:basic services and required supplementary services
2013-04-25
YD/T 1522.6-2010
会话初始协议（SIP）技术要求 第6部分：与承载无关的呼叫控制（BICC）协议与统一IMS网络SIP协议的互通
Technical Requirements for Session Initiation Protocol. Part 6:Interworking between BICC and SIP based on the unified IMS
2010-12-29