PRODUCT

4 channel USB Telephone Voice Recorder

 Adopts parallel connection, record analog telephone.

 It records with clear tone quality and easy to install and take. 

Cooperating with computers terminal can build a convenient telephone recording system.

Features: 

● USB interface，easy installation and supports hot-swap; PNP(plug and play) and automatic recognition. 

● Supports Windows 11/win10/win8/win7/win XP operating system. 

● Supports three start-up modes: voltage record mode, sound record mode and key record mode. 

● Accurately judge the channel status(Pickup/pick off, Ring times, Open or Short-circuit, Sonance or Silence)

● DTMF and CID can be detected by hardware-decode, and automatically identifies two modes respectively for FSK and DTMF

● Audio data can be directly saved in WINDOWS standard WAVE format, which do not need to convert file format so that playback by the sound card.

● Supports AGC in volume, which ensures the volume balance between the remote end and near end during call.

● Supports automatic recovery after hot-swap and USB port error.  

● Drivers is based on event-driven, providing DLL dynamic link library and ActiveX control

Product model: 

           GXUSB-4R     4 channel  USB Telephone Voice Recorder box 

Development Environment: 

● Windows 11/win10/win8/win7/win XP

● DLL dynamic link library and ActiveX control 

● Support for VC + +, VB, DELPHI, PB, C + + Builder,. NET, WEB 

● Provides the source procedure as a programming example.

Specification 

Input mode: high-impedance bridge connection

Input Impedance：10kΩ

Frequency Range：300-3400Hz（±3dB）

Data Rate：64KBPS, 32KBPS, 13.6KBPS

Max installation for 1 PC：support 2 pieces box in 1 PC

Working Temperature：0℃-55℃

Power Consumption：≤15W

Humidity：8%-90%(no moisture condensation)

Storage Temperature：-20℃- 85℃

MTBF：≥ 105 hour

Caller ID：FSK、DTMF

DTMF Code：0~9, * # A B C D

FSK Modulate Mode：Logical 0:2200Hz±1%

Telephone line Status Judge Voltage： 50-90AV(Ring), 4-16V(hook-off), 18-48V(hook-on) ,  3.2V(Power off)

Lightning protection level: 4