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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 4150-2022 |
Signaling technical requirements for caller ID display service based on ISUP protocol {译} 基于ISUP协议的主叫号码显示业务信令技术要求 |
China Telecommunication Industry
Standards caller |
 English PDF |
| YD/T 2944-2015 |
(IMS gateway caller ID transmission technology requirements) ims网间主叫号码传送技术要求 |
China Telecommunication
Standards caller |
English PDF |
| YD/T 1277.1-2003 |
Technical specification and testing method of caller identity delivery based on PSTN. Part 1: Technical specification 固定电话网主叫识别信息传送技术要求及测试方法 第一部分:技术要求 |
China Telecommunication
Standards caller |
English PDF |
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