"...GNU Telephony Secure Calling is intended to make it both possible, and easy, for individuals, private organizations, and public institutions to deploy secure realtime voice and video communications (VoIP) both in closed and openly accessible networks, and to do so in a manner which helps make passive and warrantless communication intercept of private communication a thing of the past.
Read more »Secure Calling Initiative Reaches Second Milestone
http://lxer.com –
Twinkle: My favorite SIP program
http://www.freesoftwaremagazine.com –
I’ve been looking for an SIP program for a long time. Linphone, OpenWengo, and Gizmo all failed to work with my Logitech AK5370 USB microphone (ah, the joys of drivers!). Eventually, after about half a dozen programs, I gave up. Then, out of the blue came Twinkle, a Qt-based VoIP phone.
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Designing a basic Asterisk VOIP system for SIP clients
http://resources.zdnet.co.uk –
Asterisk is becoming an increasingly popular way for organizations to deploy Voice over IP (VoIP) without making a huge investment in proprietary systems. One of the major hurdles to get over when deploying Asterisk is to learn how the different configuration files work together and how to configure the system to answer phones.
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