Voice Over IP - References
How Stuff Works
http://www.howstuffworks.com
Commweb
http://www.commweb.com
Rad University H.323 project
http://www.rad.com/networks/2000/h323/mainpage.htm
Columbia University - Computer Science Dept.
http://www.cs.columbia.edu
Whatis.com Website
http://www.whatis.com
Article by Ezenia! - IP conferencing
http://www.ezenia.com
Comparison of H.323 and SIP for IP Telephony Signaling - Article by 3Com & Cisco.
Fine-tuning Voice over Packet services - Yuval Boger / RADCOM Ltd.