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Manufacturer: Microsoft
Model Name/Number: 6700s-1c (RM-577)
Technologies and Bands:
(3G)
UMTS FDD: Band I   Band II   Band V  
(2G)
GSM: 850 MHz   900 MHz   1800 MHz   1900 MHz  
Certification DateHardware VersionSoftware Version
2010-06-170310A, 0410, 0410A, 0412A, 0413, 0500033.014
2010-04-290310A, 0410, 0410A, 0412A, 0500032.005

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