Huawei ETS 2288 CDMA desk telephone, cordless phone 800Mhz ruim/non ruim with Internet data service

 Specifications:
1. Air interface:  CDMA 800Mhz frequencies
2. External in interface:
   The power supply interface: POWER / DC12V
   Outside phone interface: RJ-11(PHONE)
   Outside fax interface: RJ-11 (FAX)
   The antenna interface: SMA (Male) 
   The data Service interface: SERIAL PORT

3. Power adaptor:
    Input voltage: AC90-260V / 50Hz
    Output voltage: DC12V
    Output current: 1.2 A
4. Backup battery:
    Ni-MH battery
    7.2V / 1.2A

5. Antenna:
   Frequency Band:
   890-960 MHz / 1710-1880 MHz
   Gain: 2.5dBi
   Wave ratio: ≤1.5
   Input resistance: 50ohm.
   Polarize method: perpendicularity polarizes
6. Dimensions(L*W*H) Average 226mmX226mmX551mm(not include the antenna)
7. Weight: 1200g (include the antenna, battery, power adaptor.)