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Microsoft patent for listening to VoIP telephony

The US Patent Office published Microsoft patent application No. 20110153809 dated December 23, 2009, which describes a system called “Legal Intercept” for “hidden communications recording”.



As stated in the system description, the interception channel with the recording agent (recording agent) is established by modifying the data in the connection request. As a result of this modification, the VoIP protocol establishes a connection over the already listened channel.



The Microsoft system provides hidden recording of audio and video communications between two or more parties, is approved in a patent application.





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Just in case, we repeat that Microsoft filed this application a year and a half before buying Skype, so there can be no clear link here. Apparently, just a coincidence.

Source: https://habr.com/ru/post/122928/



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