... good data delivering speed in high speed train and automobile .5,Connection rate, in area of mobile network ,connection rate ... calls ,Telephone book Technology Specification ,Network type WCDMAChipset Qualcomm6290Frequency scope UMTS/HSPA,2100MHZ,GSM/GPRS/EDGE,850/900/1800/1900MHZ ... )Data delivers rate Max 5.76Mbps(Uplink )/7.2Mbps(Downlink )Support voice , SMS, ...