Features:
Easy to install. No need to invest in ground wire line, use GSM mobile phone SIM card. Support international and domestic, local, fixed/mobile voice services. Do not change the old dialing habits, the same as ordinary telephone landline operation habits. With a reverse polarity signal, you can access the meter or use the computer meter. Built-in watchdog duty circuit, automatic detection of equipment operating status, automatic restart failure. Standard communication voltage, can be connected with the user switch (PABX). Automatic IP function, multiple IP settings. Fixed long-distance automatic insertion of the calling IP prefix, such as 17951,17911,193 and so on. International, domestic, local calls and other types of access settings. Preset local area number, local segment and forbidden dialing number or segment.

Specifications:
PLug: 100-240V UK
Color: white
Caller ID: Yes
Interface form: RJ11
Support network: GSM: 1900/1800/900/850M
Visual function: None
Scope of application: wireless access, security
Number storage function: Yes
Recording function: None
Signal sensitivity: <-104DBM
Transmitting power: <2W
Antenna power: >1.5db
Power: 5V 1A
RJ11 Working Voltage: DC 8~12V
RJ11 Standby Voltage: DC 40~48V
RJ11 Dial-up Audio Frequency: 450HZ
RJ11 Feed Current: 20MA~40mA
RJ11 reverse polarity: support
RJ11 Caller: DTMF
Working Environment Temperature: - 20 ~50 ℃
Relative humidity: 10% ~90%
Package Weight: 389g/

Package List:
1 * Fixed Wireless Terminal Main Unit
1 * Power Supply;
1 * special antenna
1 * telephone line
1 * user manual