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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 1522.7-2013 |
Technical requirements for session initiation protocol. Part 7: SIP supporting presence and instant message service 会话初始协议（sip）技术要求 第7部分：sip支持呈现和即时消息业务 |
China Telecommunication
Standards Technical Requirements Presence |
 English PDF |
| YD/T 2181-2010 |
Technical requirements for presence service basing on IMS (phase Ⅱ) 基于ims的呈现（presence）业务技术要求（第二阶段） |
China Telecommunication
Standards Technical Requirements Presence |
English PDF |
| YD/T 1802-2008 |
Technical Requirements for Presence Service Basing on IMS(Phase Ⅰ) 基于ip多媒体子系统（ims）的呈现（presence）业务技术要求（第一阶段） |
China Telecommunication
Standards Technical Requirements Presence |
English PDF |
| YD/T 1726-2007 |
Security Technical Requirements for Presence Service in 2GHz TD-SCDMA/WCDMA Digital Cellular Mobile Communication Network 2ghz td-scdma/wcdma数字蜂窝移动通信网呈现(presence)业务安全技术要求 |
China Telecommunication
Standards Technical Requirements Presence |
English PDF |
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