... driver Special for Russia / Bangladesh country OEM Wireless EDGE GSM Modem High Speed with factory best service USB interface EDGE MODEM ... downlink: 384KbpsGPRS: Max downlink: 247KbpsGSM CSDFunction of phonebook: build New, edit and delete, Store and sendSMS functions: Group and ... single sending , reply, Create new,delete,edit, Save to draft box, Sms shift betweenSIM card ...