China 'YD/T 1285-2003
' standard english version summary:
YD
中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
YD/T 1285-2003
The test method for quality of communication for inter-public telecom network. Call complete ratio and post-dialing delay for telephone call 公用电信网间通信质量测试方法——电话呼叫的接通率和拨号后时延
Issued Date:
Implemented Date:
Issued by:
The Standardization Administration of the People's Republic of China
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"YD/T 1285-2003" standard !
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The test method for quality of communication for inter-public telecom network. Call complete ratio and post-dialing delay for telephone call
GB Standard Chinese Title
公用电信网间通信质量测试方法——电话呼叫的接通率和拨号后时延
Chinese
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