1.GSM 900/1800mhz(850/1900Mhz optional); 2.Short message function; 3.128*64 LCD display. 4.Support remote network management. 5.Call forwarding and incoming caller ID,setting date,alarm and calculator; 6.Support carrier locking,incoming and dialing call bar function,fixed dialing function; 7.phone book storing up to 200 numbers; 8.Automatically add IP number ahead of long distance call; 9.Off/on hook,handsfree and redial function; 10.smart power management,Detecting the batteries to recharge or discharge automatically.