Call record all incoming and outgoing.
Monitor real-time call circumstance of any line.
Query any record on the computer.
Non-stop record for 24 X 7 hours.
All functions can proceed in a real time way.
Caller ID and dial out number supported.
Automatic gain control of record and play to ensure the volume.
Classified management of user right.
Count record.
And wave, can manage client and recording, show
the telephone number and client data on local computer

Input: 4 channel
Impedance: high impedance > 100k Ohm
Signal to noise :50 dB
Frequency response : 300Hz to 3400Hz
Digital Mode: GSM
Collection Speed: 12.5Kbits/s, compression ratio is
5 average search path : 39ms
Power : 300W MAX
Humidity: 5% to 85%
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Additional Information:
Minimum Order Quantity: 1 one