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Main Stage·21 min

DEF CON
AppSec
Date: Aug 2022
Location: Las Vegas

Phreaking 2.0: Abusing Microsoft Teams Direct Routing

Moritz Abrell

Moritz Abrell demonstrates modern VoIP phreaking against Microsoft Teams Direct Routing, exploiting SIP and Session Border Controller (SBC) misconfigurations.

microsoft-teamsvoipsip+2