| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 3267-2017 | English | 439 |
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Days<=4
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Technical Requirements for interworking between IMS networks and Switched circuit networks, softswitch networks of different operators
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YD/T 3267-2017
| Valid |
YD/T 3267-2017
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