Can Android VoIP voice conversations be decoded? I can eavesdrop on your Android VoIP communication
Shasi Pokharel, Kim‐Kwang Raymond Choo, Jixue Liu · Concurrency and Computation Practice and Experience · 2016
Summary Voice over Internet Protocol (VoIP) is increasingly used by both individuals and corporate users. Recent studies had suggested that communications using VoIP apps may not be encrypted, although it has not been demonstrated that original conversations could be recovered from unencrypted communications that were subsequently intercepted. In this research, we propose a process for codec identification and decoding of captured communications from 15 popular Android VoIP apps. We are able to recover the original voice conversations from intercepted app‐to‐app voice calls of nine apps and app‐to‐phone calls from 10 apps. Copyright © 2016 John Wiley & Sons, Ltd.