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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 4149-2022 |
Service technical requirements based on Unified IMS (Phase 2) One-number multi-terminal service {译} 基于统一IMS（第二阶段）的业务技术要求 一号多终端业务 |
China Telecommunication Industry
Standards Unified IMS |
 English PDF |
| YD/T 4148-2022 |
Unified IMS network (second stage) and CDMA network short message signaling interworking test method {译} 统一IMS网络（第二阶段）与CDMA网络短消息信令互通测试方法 |
China Telecommunication Industry
Standards Unified IMS |
English PDF |
| YD/T 2975-2015 |
(Unified IMS network supports multi-mode single standby voice call continuity of the technical requirements) 统一ims网络支持多模单待语音呼叫连续性的技术要求 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2887-2015 |
(Emergency call service test method (first stage) is based on a Unified IMS) 基于统一ims的紧急呼叫业务测试方法（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2822-2015 |
(IMS network supports enterprise unified communications business technical requirements) 统一ims网络支持企业通信业务的技术要求 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2541-2013 |
Technical requirements of emergency sessions services based on the Unified IMS(Release 1) 基于统一ims的紧急呼叫业务技术要求（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2463-2013 |
Technical requirements of Unified IMS network for supporting IPv6 统一ims网络支持ipv6的技术要求 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2460-2013 |
Test method of services based on the Unified IMS multimedia ring back tone(Release 1) 基于统一ims的业务测试方法 多媒体彩铃业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2459-2013 |
Test method of services based on the Unified IMS. IP Centrex service 基于统一ims的业务测试方法 ip centrex业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2458-2013 |
Test method of services based on the Unified IMS customized multimedia ringing (Release 1) 基于统一IMS的业务测试方法 个性化振铃音业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2457.1-2013 |
Test method of services based on the Unified IMS multimedia telephony service (release 1). Part 1: basic services and required supplementary services 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 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2425-2012 |
Technical requirements of the session border controllerin Unified IMS 统一ims中的会话边界控制设备技术要求 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2295-2011 |
Technical requirements of services based on the Unified IMS. Click to dial service (Release 1) 基于统一ims的业务技术要求 点击拨号业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2294-2011 |
Testing method of home subscriber server(HSS)of the Unified IMS (Release 1) 统一ims归属用户服务器（hss）设备测试方法（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2293-2011 |
Testing method of proxy call control function (P-CSCF) of the Unified IMS (Release 1) 统一ims代理会话控制设备（p-cscf）测试方法（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2292-2011 |
Test method of interrogating/serving call control function (I-CSCF/S-CSCF) of the Unified IMS (Release 1) 统一ims查询/服务会话控制设备（i-cscf/s-cscf）测试方法（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2291-2011 |
Technical requirements of interrogating call session control function/serving call session control function (I-CSCF/S-CSCF) of the Unified IMS (Release 1) 统一ims查询/服务会话控制设备（i-cscf/s-cscf）技术要求（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2290-2011 |
Technical requirements for interworking between Unified IMS and softswitch 统一ims网络与软交换网络互通信令流程技术要求 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2187-2010 |
Technical requirements for Home Subscriber Server (HSS) of the Unified IMS (Phase 1) 统一ims归属用户服务器（hss）设备技术要求（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2186-2010 |
Technical requirements for Proxy Call Session Control Function (P-CSCF) of the Unified IMS (Phase 1) 统一ims代理会话控制设备（p-cscf）技术要求（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1522.6-2010 |
Technical Requirements for Session Initiation Protocol. Part 6: Interworking between BICC and SIP Based on the Unified IMS 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 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1522.5-2010 |
Technical requirements for session initiation protocol. Part 5: Session initiation protocol based on the Unified IMS 会话初始协议（sip）技术要求 第5部分：统一ims网络的sip协议 |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2013-2009 |
Technical requirements of services based on the Unified IMS. Malicious call identification (MCID) and anonymous communication rejection (ACR) service (Release 1) 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） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2011-2009 |
Technical requirements of services based on the Unified IMS. Call waiting (CW) and call HOLD (HOLD) service (Release 1) 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） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2010-2009 |
Technical requirements of services based on the Unified IMS multimedia conferencing service (Release 1) 基于统一ims的业务技术要求 多媒体会议业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2009-2009 |
Technical requirement of services based on the Unified IMS customized multimedia ringing service (Release 1) 基于统一ims的业务技术要求 个性化振铃音业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2008-2009 |
Technical requirement for services based on the Unified IMS. Customized multimedia alerting service (Release 1) 基于统一ims的业务技术要求 多媒体彩铃业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 2007-2009 |
Function and architecture for the Unified IMS (Release 1) 统一ims的功能体系架构（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1933-2009 |
Technical Requirements of Services Based on the Unified IMS IP Centrex Service(Release 1) 基于统一ims的业务技术要求 ip centerex业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1932-2009 |
Technical Requirements of Services based on the Unified IMS Identification Presentation and Restriction Service(Release 1) 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） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1931-2009 |
Technical Requirements of Services based on the Unified IMS Call Forwarding Service(Release 1) 基于统一ims的业务技术要求 呼叫前转类业务（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1930-2009 |
General Technical Requirements of the Networkingfor the Unified IMS(Release1) 统一ims组网总体技术要求（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
| YD/T 1929-2009 |
Requirements for the Unified IMS(Phase 1) 统一ims的需求（第一阶段） |
China Telecommunication
Standards Unified IMS |
English PDF |
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