Apresa records from the Panasonic NS1000 using internal passive recording. During a call, VoIP data is sent between the phones. This VoIP data is copied to the call recorder by port mirroring (also known as SPAN). In a Local Area Network, this port mirroring is done by a network switch. The picture below shows internal passive recording. With this setup, Apresa can record internal and external calls.


 
 

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