| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1331-2004 | English | 1329 |
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Days<=7
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Technical requirements of Service Switching Point (SSP) equipment for Wireless Intelligent Network (WIN). Phase2: In 800MHz CDMA digital cellular mobile telecommunication network
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YD/T 1331-2004
| Valid |
YD/T 1331-2004
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