product description GSM desktop phone is a good choice for office and home use with clear and loud voice strong signal and backup battery it is the best for remote rural areasit is easy to use and Corporate convenient for the old and kids features GSM 900 mhz/1800 mhz or 850 /900/ 1800 /1900 mhz WCDMA: 900 /2100 mhz Support high quality voice speech encoding Support emergency call redial speed dial call forwarding call waiting call hold three Party call Supplementary Services 2 way sms Voicemail and caller ID large phone book store 300 pieces telephone numbers phone memory and SIM card dtmf dialling adjustable ring and voice volume ringtone selection LCD display 128 into 64 Dot Matrix LCD display backlight function backlight LCD with datetime signal strengthen battery volume status icons can save check delete and callback incoming outgoing and missed calls TNC antenna or non detachable antenna rechargeable li-ion backup battery sim card interface the Standard 6 pin sim card interface a variety of specifications for selection lock card lock National Call Lock Phone default IP function GPRS Internet data service support CSD and GPRS class 10 allocate connect PC by USB port software upgrade Jack support multi language Technical spec: 1. Normal operation temperature: -30 ---70 Restricted operation temperature: -30 ---80 Storage temperature: -40 ---85 2. Environment noise: Below 60dB(A) 3. SIM Card: 1.8V/ 3V 4. Channel interval: 200 KHz 5. Receive sensitivity: <-100dBm 6. Relative humidity: 45%~95% 7. Atmosphere pressure: 86~106Kpa 9. Power supply: 220V plus/minus 15%, Freq.: 50Hz 10. GPRS multi-slot class 10/8 GPRS mobile station class B 11. Compliant to GSM phase 2/2+ -Class 4() -Class 1() 12. Control via AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT Commands) 13. AC power: DC 5V 1000mAH 14.Charger: US, UK, Australia and European standards. 15.Dimensions (L x W x H) (average): 220 x 200 x 60mm 16.Weight: FWP: 650g; Full set with AC adapter, antenna and box: 750g 17.Colors: Black/White 18. Battery: 3, 6V 1000mAH Li- ion rechargeable battery (accessory) standby time: up to 168H Applications: 1) For public use 2) For office and home use 3) For rural and mountainous areas 4) For mobile carriages, like ships, automobiles and trains 5) For those places where hardwire-line telephone service is unavailable Pictures: English keyboards and other language keyboards are available. Packing list: gsm desktop phone Power adaptor Antenna Back up battery User manual Data line
