| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1980-2009 | English | 579 |
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Days<=4
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Technical requirements for Mg/Mi/Mj/Mk/Mw/Gm interface in IMS system in mobile communication network
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YD/T 1980-2009
| Valid |
YD/T 1980-2009
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