Valtteri Lehtinen
Security Research & Curiosities | Helsinki, Finland
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Tags - SIP
Jan 6 2024
InmateBridge: Voice Bridge for Prank Calling
Feb 15 2022
GoIP-1 GSM gateway could be harnessed for phone fraud by hackers
Jun 23 2021
I made 56874 calls to explore the telephone network. Here's what I found
Apr 17 2021
What I learned of the VOIP hacker scene by setting up a SIP Honeypot