Columbia University
Columbia University: Session Initiation Protocol (Sip)
This is a very complete, academic site covering the SIP protocol. Find out an overview of the topic, news, features, grammar, implementations, service providers and more.
Other
Net2 Phone
Net2Phone is a software program that allows you to make free phone calls from your PC.
Other
Cpsr: Cyber Rights
CPSR offers an informative discussion of current legal and policy topics hosted by group working for rights of assembly and speech for online communities.
Other
Cornell University: Experimental Study of Skype [Pdf]
This white paper on Skype describes and experimental study of the Skype Peer-to-Peer VoIP system. It particuarly focuses on the concept of supernodes, and how Skype differs fundamentally from earlier P@P systems that are oriented toward...
Other
Honey Software: Personal Video Telecommunications
Honey Q is a conferencing program that allow users to combine instant snapshots with instant messaging-style communication.
Other
Internet Telephony
This is the official website of Internet Telephony Magazine. The online version basically offers all of the latest articles and news that the print version offers, plus archived articles, buyer's guide, newsletter, and more.
Other
Columbia University: Analysis of Skype Peer to Peer [Pdf]
This academic paper gives a very detailed, technical explanation of the Skype peer-to-peer internet telephony protocol. Diagrams are included that illustrate the Skype network and message flow. (2004)
Goodwill
Gcf Global: Skype
In this tutorial, learn how to set up and use Skype to make video calls and more.
Goodwill
Gcf Global: Google Hangouts
In this tutorial, learn how to send texts and make voice and video calls on your computer or mobile device using Google Hangouts.
Wikimedia
Wikipedia: Skype
This article introduces the reader to Skype, a peer-to-peer Internet telephony (VoIP) network.Skype users can speak to other Skype users for free.
Get Safe Online
Get Safe Online: Use Internet Telephony Safely
Internet telephony is using the internet for voice communication. It is also called voice over IP (VOIP). This site provides some tips on how to use VOIP safely and avoid loss of privacy.