| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 2537-2013 | English | 919 |
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Days<=4
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Test method for number portability service
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YD/T 2537-2013
| Obsolete |
YD/T 2537-2013
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