SipSec.com
About SipSec.com
This site below probably has all of the VoIP links most people would need. Most of the documents are related to VoIP can be found off of links here:http://www.voip-info.org/wiki/ Here's a SIP site that is really useful. Many documents can be found on it:http://www.tech-invite.com/ This site is the open source site. It has different sip stack and sip phone open sources. Resipricate, sipXphone etc. might be good projects for students to do some implementations.
