forrestgump168 hotmail.comSupport GSM 850/900/1800/1900MHz public mobile communication networksSupport CDMA 450/800/1900MHz public mobile communication networksProvide accurate reverse polarity billing signalDisplay Caller IDConnection mode: RJ-11 phone sockets .It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc. DTMF DialingIP PresettingSIM self-checkSIM chips rotating according certain condictions (times dialing out or minutes of the conversation or minutes of the chip login the network)Support 1.8V/3V SIM card.sofeware update automaticallybase station ratotion customed;IMEI/ESN changableCall ForwardingCaller ID display2nd Stage DialingThree-way calling meetingSMS forward(forward condition can be set).SMS modificationSend AT commands from com port.Set to reset automatically under certain condictionsProvide command sets from phone keypadAdd prefixal code automaticallyCallback FunctionBarred telephone numbers can be set flexiblyLocking wireless terminal, Locking SIM card, Locking districts and locking networkEnhanced high gains external antennaHigh-quality voice
