A patent application published by the USPTO last Thursday reveals that Microsoft has been researching, since before December 2009, how to redirect VoIP calls to intercept devices and law enforcement agents. The method disclosed by the patent application is devious—subverting routing protocols so that packets sent by any person tagged by a monitoring request will be routed through a recording agent. The application discloses "gaming systems, instant messaging protocols that transmit audio, Skype and Skype-like applications, meeting software, video conferencing software, and the like" as technologies that can use this method. In other words, Microsoft has reason to believe that their interception method can be applied to the newly acquired Skype (recently deployed in Congress), Xbox 360, and the video conferencing features in Office 365.
Er wordt gewerkt aan een alternatief voor Skype op GNU grondslag; meer info hier.
Wat er anders is aan GNU Telephony wordt hier uitgelegd.