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 China 'YDN 030.2-1997 ' Industry standard english version:

　
YD
中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

YDN 030.2-1997

Code number and dialing procedure of universal personal telecommunication, wide area Centrex switch (WAC), vote of telephone (VOT) and mass calling (MAS) services (internal standard)
通用个人通信（upt)、广域集中用户交换机(wac)、电话投票(vot)和大众呼叫(mas)的编号和拨号程序
Issued Date:1997-04-01 　 Implemented Date:1997-05-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code YDN 030.2-1997
Standard Category China Telecommunication Standards
GB Standard English Title Code number and dialing procedure of universal personal telecommunication, wide area Centrex switch (WAC), vote of telephone (VOT) and mass calling (MAS) services (internal standard)
GB Standard Chinese Title 通用个人通信（upt)、广域集中用户交换机(wac)、电话投票(vot)和大众呼叫(mas)的编号和拨号程序
Chinese Version Price $5.00  per 1 page
English Translation Fee $15.00~$30.00   per 1 page
Member Price   10%~50% off

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