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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 1662-2007 |
Testing Methods for National No.7 Signalling System. GSM Mobile Telephone User Part (MTUP) 国内no.7信令方式测试方法--gsm移动电话用户部分(mtup) |
China Telecommunication
Standards Testing Methods National |
 English PDF |
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