  |
Wikipedia: Voice over IP - http://en.wikipedia.org/wiki/Voice_over_IP
Encyclopedia article with background information, technical details, and the advantages and disadvantages of VoIP. |
  |
Packetizer - http://www.packetizer.com/
Technical information about VoIP and videoconferencing. |
  |
VoIP Wiki - http://www.voip-info.org/wiki/
A wiki that covers VoIP software, hardware, service providers, reviews, configurations, and standards. |
  |
CentraNow - http://www.centranow.com
Web meetings powered by Voice over IP. |
  |
VoIP Watch - http://andyabramson.blogs.com/
A weblog with news and reviews of VoIP products. |
  |
iBasis - http://www.ibasis.net
Provider of wholesale international IP telephony services. |
  |
IP xStream - http://www.iptelephony.org
IP Telephony data source. |
  |
SecureLogix Corporation - http://www.securelogix.com
Provides enterprise telephony management systems. |
  |
VoIP.org.uk - http://www.voip.org.uk/
UK resource with the emphasis on small businesses and home users. Includes news, reviews, and forums. |
  |
Voice over IP and IP Telephony References - http://www.cs.wustl.edu/~jain/refs/ref_voip.htm
A directory of talks, papers, books, organizations, vendors, standards, web pages, and standards on IP telephony. |