Nokia 7230 was officially announced in November 2009, Device released in February 2010Mobile Network Support and BandNokia 7230 have Mini-SIM Card Slots,Nokia 7230 support all GSM Based network providers. Nokia 7230 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 900,HSDPA 1900,HSDPA 2100, (UMTS),comes with network handling support with Network settings and work offline with flight Mode.