Digital Telephone Voice Recording Interfaces
Analogue Audio/Telephone Recording Interfaces
Covert Audio/Video Security System
Audio System / Dealer Board Interface Analogue Telephone Signalling Converters

Data over Voice Recording Interface (DOV). ACL Digital Ltd has developed the Data over Voice card to resolve the Problem of clean triggering when recording Data over voice telephone systems.

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Uses the 32 kHz Data Carrier floating over the voice path to initialise recording using the integral bit pattern reader, various other patterns available via programmable J-peg port.


Clean triggering of recording.
Filtering of Data carrier from audio path by 2 stage filter (15dB per octave).


High input impedance.
High signal to noise ratio greater than -80 dBMo.
Low power consumption.


Stand alone (4 chnls in case) or 19 rack mounted equipment shelf.
20 cards maximum per shelf.
4 channels per card.

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