| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 5163-2021 | English | 1239 |
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Days<=8
|
(Technical Specifications for Telecom Operation Customer Service Call Center Engineering)
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YD/T 5163-2021
| Valid |
YD/T 5163-2021
|