Attack on audio and video conferencing made easy

At the DEFCON conference, which drew to a close yesterday, the developers behind UCSniff presented version 3.0 of the VoIP sniffer, which includes two major new features. Firstly UCSniff, which is coded by Jason Ostrom and Arjun Sambamoorthy, now automatically detects video data transferred by VoIP telephones on the network, even when mixed with audio data. This allows the tool to record those audio and video components which occur in a typical 'unified communication environment'. Secondly, the software will in future also run on Windows – previously it was intended for use only in conjunction with the Linux-based BackTrack 3 penetration testing distribution. The developers plan to make the new version available for download shortly.

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Install Asterisk with GUI in 5 easy Steps: The FreeBSD Way

It is beyond the scope of this guide to teach you how to install the FreeBSD OS.
To make this tutorial even simpler, I remove the Digium PCI Card with 4 FX0.

Requirements:

* Running FreeBSD OS (I’m currently using FreeBSD 7.2)
* Root Access to install from ports
* Basic Unix Commands
* Win32 X-lite SIP Phone

How to: Encrypt Your VoIP

As VoIP becomes ever more popular, the security of these systems becomes more of a concern. VoIP can be vulnerable to a number of attacks due to the nature of VoIP calls. In short, VoIP traffic flows across the Internet in unencrypted packets, which means anyone that has access to the network between sender and recipient can intercept these packets — essentially allowing them to create a recording of your conversation. How can you help secure yourself against these types of attacks?

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Asterisk + TellMe Studio = VoIP PBX with Voice Recognition IVR

http://www.spinepunch.com