- allows amateurs to communicate using radio and voip for at least part of the path between them
- It was designed by Jonathan Taylor K1RFD.
- The program allows reliable worldwide connections to be made between radio amateurs, greatly enhancing Amateur Radio's communications capabilities. In essence it is the same as other VoIP applications (such as Skype, Yahoo), but with the unique addition of the ability to link to a transceiver.
windows - http://www.echolink.org
linux - http://cqinet.sourceforge.net/