... 802.11b/gCall functions:Speakerphone, IP dialing, call recording, caller identification (support ring tones), call records ... picture,caller Ring ToneBusiness functionsFlight mode, book, calculator, recording, world clock, stopwatch, calendar, Memorandum SpecificationsNetwork:GSM ... 1 battery)Battery:Lithium BatteriesColor:blackStandby Time:About 240-280 HoursTalking time:Up to 3-4 hoursPackage Contents ...