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Side-Channel VoIP Profiling Attack against Customer Service Automated Phone System. (arXiv:2306.00095v1 [cs.CR])
cs.CR updates on arXiv.org arxiv.org
In many VoIP systems, Voice Activity Detection (VAD) is often used on VoIP
traffic to suppress packets of silence in order to reduce the bandwidth
consumption of phone calls. Unfortunately, although VoIP traffic is fully
encrypted and secured, traffic analysis of this suppression can reveal
identifying information about calls made to customer service automated phone
systems. Because different customer service phone systems have distinct, but
fixed (pre-recorded) automated voice messages sent to customers, VAD silence
suppression used in VoIP will …
analysis attack automated bandwidth channel customer customer service detection encrypted information order packets phone phone calls profiling service side-channel silence system systems traffic traffic analysis voice voip