fixed wireless phone

The call display function, alarm clock function, IP telephone Numbers, 200 group Limit inbound, exhale, call waiting IP number Settings Machine card interlock, lock nets, lock, lock operators Using special SIM has applied for patents () to prevent SIM card was moved to use mobile phones decoding. Support machine card interlock, district boards, lock, password protection function. Random PIN code protection. Strong Chinese input method with lenovo function, multiple input mode. Card holder function, support 200 records. Inbound call with limited restrictions, and the function of fixed dialing. Adjustable volume, bell, many music optional. Have picked hang inbound, handset-free dial-up, dial the function. LCD128 * 64, large LCD display, indicating that the four contact information, real-time display date and time. Supports remote network. Lockable long-distance exhaled. GSM 900/1800MHZ double-frequency adaptive. Intelligent management, power of automatic testing machine backup battery charging, avoid long battery charging into state. Friendly interface, rich English menu. With the battery and the signal strength. Call records function. English short message function. Support to transfer and the call display function. Has the time or date set, alarm clock, calculator function. Can install button, alarm sounds, information prompt RenJian answer etc. Function. Key fast response, namely by accordingly. Built-in antenna (external). Using echo cancellation and digital voice encryption technology to improve quality of voice. Appearance generous, operating conveniently. Using the wireless industry module. GSM900: DCS1800MHZ/working band. Accept sensitivity: < - 104dBm Stray emission limits: = - 30dBm Method: 0.3 GMSK 200KHz > : occupy bandwidth Channel interval: 25KHZ Frequency stability: ± 0.1 PPM Working voltage AC220V: DC8V - 30V ± 15% Environmental temperature: 0 ° C + + - 40 ° C Work humidity: 5% - 95 Atmospheric pressure: 106Kpa - 86 Frequency range: 885-915MHZ, 1755MHZ - 1710