Features:
1) Applies to E-GSM 900/1800Mhz mobile communication network
2) Easy to install and easy to maintain
3) Clear voice and no noise
4) Caller ID (CLI display)
5) Stores 10 received / 10 dialed / 10 missed call records
6) Authentic signal, battery volume, time and date display
6) Built-in back-up Li-ion battery: 48 hours standby / 3 hours talk
7) English LCD and case
8) 12 groups chord ringers for incoming call
9) Hands free function
10) Metering function for payphone purpose
11) Speak number in English function (option)
12) Strong signal by high gain antenna (3.5dB - 5dB)
13) IP pre-setting for save call cost
14) Like ordinary hardwire-line telephone operation method

Specifications
1) Air interface standard: GSM 900 / 1,800MHz phase 2+
2) Frequency ranges
a) GSM 900 I) Transmission: 890 - 915MHz ii) Reception: 935 - 960MHz
b) GSM 1800 I) Transmission: 1,710 - 1,785MHz ii) Reception: 1,805 - 1,880MHz
3) Channel space: 200KHz
4) Max power: 0.25W / 0.5W
5) Consumptiona) Immobility: less than 25mAb) Transmission: less than 400mA
6) Sensitivity: -105dB
7) Surrounding temperature: -10 degree - +40 degree
8) Relative humidity: 45% - 90% (without frost)
9) Atmosphere pressure: 86 - 106Kpa
10) Environment noise: <60dB
11) Antenna amplifying: 3.5dB (omni directional), 12dB (certain direction/ chosen direction)
12) AC power: DC 5V 1A
13) Connector of power: US or European type( selectable)
14) Dimensions (L x W x H) (average): 230 x 180 x 60mm
15) Weight: FWP: 400g; Full set with AC adapter, antenna and box: 550g
16) Colors: White
17) Antenna connection: SMA antenna connection