EchoLink a computer-based Amateur Radio system distributed free of charge that allows radio amateurs to communicate with other amateur radio operators using Voice over IP technology on the Internet for at least part of the path between them. It was designed by Jonathan Taylor, a radio amateur with call sign K1RFD.

Radio Communications Without A Radio - Echolink

Introducing EchoLink - EchoLink software allows licensed Amateur Radio stations to communicate with one another over the Internet, using streaming-audio technology.

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