ICS 33.050.10
M 40
11 U
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YD/T 1277.1-2003
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Technical specification and testing method of caller identity
delivery based on PSTN
part 1:technical specification
2003-06-05·¢²¼ 2003-06-05ʵʩ
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2 YD
中华人民共和国通信行业标准
YDAT 12771一2003
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
Teclnmieal Specification and testing method of caller identity
aalivery based oa PSTN
Part 1, technical specifieation
2003-06-05 发布 2003-06-05 实施
中华人民共利国信息产业部 发布