| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1221.1-2002 | English | 679 |
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Days<=4
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800MHz CDMA digital cellular mobile communication network message center equipment technical specification. Part one: point to point SMS
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YD/T 1221.1-2002
| Valid |
YD/T 1221.1-2002
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