What is IRLP (Internet Radio Linking Project)
The Internet Radio Linking Project, also called IRLP, is a project that links amateur radio stations around the world by using Voice over IP (VoIP). Each gateway consists of a dedicated computer running custom software that is connected to both a radio and the Internet
Link to explain what IRLP is all about. Presentation on IRLP
Link to the IRLP web site, where you can get additional information and codes to link to the different repeaters that are part of the project.
Link to IRLP web site