| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 2009-2009 | English | 879 |
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Days<=5
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Technical requirement of services based on the unified IMS customized multimedia ringing service (Release 1)
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YD/T 2009-2009
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YD/T 2009-2009
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