VoVoIP and VoIP covert channel is a research project at Georgia Tech Information Security Center (GTISC) funded by IBM-ISS. Should you have any questions, please contact Takehiro Takahashi (gte360y[at]mail.gatech.edu).
GTISC VoIP Covert Channel Research Team
Takehiro Takahashi (gte360y[at]mail.gatech.edu)
Wenke Lee (wenke[at]cc.gatech.edu)