Welcome to the home of Voice over IP covert channel sercurity page. We feature Voice over VoIP (VoVoIP) to demonstrate VoIP covert channel's capabilities and their security concerns.
VoVoIP is a proof of concept attack which demonstrates a new type of VoIP threat, the VoIP covert channel. With VoVoIP, you can establish a hidden conversation by embedding further compressed voice data into regular PCM-based voice traffic (i.e. G.711 codec). Therefore anyone who is wire-tapping your conversation will decode something completely different from the actual conversation - granted that he is not aware of the use of VoVoIP.