A voice logger is an automatic voice recording of both sides of the telephonic conversation of the PSTNthe line directly and GSM through a GSM terminal on a hard disk with a Windows-based operating system
| PARAMETERS | |
| Input | Analog audio input from radio or telephone |
| PC Interface |
USB |
| Record Trigger Modes |
Receiver pick-up (On Hook, O Hook Mode), Audio activity (VOX Mode) |
| Ring Detection Mode | Pseudo Mode, Manual or Force Mode |
| Working Temperature | -5°C to +~65°C |
| Frequency Range | 300Hz - 3400Hz, ±3dB |
| Voice Codec | PCM Alaw, MP3, AVI, U-LAW |
| Data Rate |
64Kbps/ 32Kbps/ 16Kbps |
| Caller ID |
FSK DTMF |
| Input Impedance |
600 ohm (off Hook) |
| S/N Ratio |
>40 dB at 64Kbps |
| Crosstalk |
-40 dBm |
| AGC |
Automatic Gain Control |