- Channel:1 CH.
- Compression times: 5 compression rate.
- Default recording start mode: Voltage.
- Consume power maximai: ≤10W
- Temperature: 5℃-40℃
- SNR: 60dB
- Humidity: 5%-85%
- Requency: 300-3400Hz（±3dB）
- Input impedance :AC<8MΩ,DC<100KΩ
- Data speed: 16 Kbps、32Kbps、64kbps/1s
- Interface mode:RJ11
- Distortion degree: ≤2%
- Call number: FSK、DTMF
- FSK concoct mode: Logic 0: 2200Hz±1%,Logic 1: 1200Hz±1%
- Calling Monitoring :Signal sound 、Voice、Polarity reversal.
- DTMF code: 0~9、*、#、A、B、C、D
- Exchange function:256 channel exchange directly.
- Voice file: WAV
- Voltage control mode estimation standard 40-120V(Ringing) 18-48(Idle) 5-17V(Hook off) 3.2V (Hook on)
- PC Requirement