| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 517-1992 | English | 439 |
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Days<=4
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Provisional Acceptance Specification for Individuation Ring Back Tone Platform
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YD/T 517-1992
| Obsolete |
YD/T 517-1992
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