Huawei F501 • GSM fixed wireless phone is a new wireless telephone the existing GSM mobile cellular networks directly without wire. In the range of GSM mobile telephone network, which means that • the pass. The method of operation is similar to an ordinary wired telephone. It has caller ID, call history, call dial the area code • Sweeping IP phones and hands free function. It is adapted to the needs of modern wireless communication manager. • 1: TD-SCDMA (3G network) and GSM (2G network) seamless switching. • 2: a real-time signal strength display, the amount of real power really shows. • 3: a write, send, receive SMS (200) features (Chinese / English) language selection, alarm clock function. • 4: With Caller ID; call records; speakerphone; Call timers; phonebook. • 5: Support for USIM / SIM card and phone book backup feature between the fixed station. • 6: Settings: Network type, phone settings, display settings, call settings. • 7: scene modes: normal mode, silent mode, outdoor mode. • 8: Emergency call function; should note: In case of emergency, you can use the telephone to make emergency calls. • Technical Specifications: • Frequency range: TD-SCDMA 2010 ~ 2025MHz/ GSM900-1800MHZ • Maximum transmit power: TD-SCDMA: 24dBm [1/-3dBm] • Static Sensitivity: TD-SCDMA 2010 ~ 2025MHz: better than -108dBm/1.28MHz • Working temperature :0 - 40 • Backup Battery: Rechargeable lithium battery (3.6V/1500mA) • Standby time :48-72 hours, depending on the state of the network (battery powered) • Talk time 2-6 hours, • depending on the network status may be (battery powered) • Charging time: the first 12 hours, then 6 hours • Packing list:- 1X telephone, 1X adapter,1X rechargeable back up battery,1X manual