 These vendors are offering what is referred to as active VoIP recording where the recording vendor's solution becomes an "active" participant within the call for recording purposes.This approach offers some benefits over the long established method of sniffing (Passive) recording in environments where the handsets to be recorded are off site or in remote locations, or in situations where the network routing would mean that a passive solution would be overcomplicated.It also greatly simplifies recording internal calls, as it no longer necessary to duplicate the audio streamed between two handsets to the voice recorder as the telephony system will automatically manage this in any solution.