| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1157.1-2002 | English | 239 |
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Days<=3
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The requirements for calling party number Supplementary 1
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YD/T 1157.1-2002
| Obsolete |
YD/T 1157.1-2002
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