1.Suitable for all frequencies of GSM or CDMA wireless networks; with the number provided by the mobile carrier GSM network: SIM card number; CDMA: RUIM Card number or without RUNIM Card number), the phone can be used to make local calls, DDD and IDD; 2.Support prepaid and postpaid mode, double LCD, statistics function as per year, month and day; 3.Support caller ID; 4.Preset local area code, IP prefix, special service number, local number segment; 5.Support authority assignment for local call, DDD, LDD; 6.Support SIM card locking, keypad locking, phone locking, network locking; 7.Double LCD: display automatically the name of the network carrier, signal 8.strength, battery status, time and date according to the local network; 9.Large memory of phone book to store the incoming and outgoing calls; 10.Support PC fax /GPRS/network management function (optional);