GSM Fixed Cordless Phone/GSM Fixed Wireless Telephone Etross-6588

Etross-6588 is GSM Fixed wireless phone that support SMS and FM Radio,just insert GSM mobile sim card to make and receive calls,no need plug phone line cable. GSM Desktop Phone descrition:Brand:Etross or OEM brandModel no.: Etross-6588Product name:GSM Fixed wireless PhoneFrequencies: 2G GSM850/900/1800/1900Mhz  Features:1.MTK Chipset2.FM Radio,SMS,Voice Mail support;3.Green Backlight4.Single/Dual SIM optional.5.Caller ID Display;6.Support high quality voice (speech encoding FR, EFR, HR, AMR);7.Support emergency call,redial,speed dial;hands free8.Support three-way conference call;9.Call in / Call out /Call divert/ Call waiting limitation function10.Language:English,Spanish,Russian,French,Arabic and Burmese etc.11.Large pone book: store 300pcs telephone numbers;12.Save more than 100 SMS on the phone;13.Storage 20 missed call or received calls and the last ten dialed number14.Default IP function optional;15.Local No. / direct No. / limited No. Setting;16.Speaker Phone17.Micro USB interface for charging and firmware upgrade18.Lock up function:SIM card,network,cell and operated company19.7-level headphone volume and silence adjustable20.Low-power indicator21.Support STK111422.Packing Size (cm): 25*18*623.Color:Black/White(optional)24.Integrated or TNC detachable antenna (optional) Operating Requirements:1. Normal operation temperature: -30 ---70Restricted operation temperature: -30 ---80Storage temperature: -40 ---852. Environment noise: Below 60dB(A)3. Support SIM Card 1.8V/ 3V4. Channel interval: 200KHz5. Receive sensitivity: