Dog Park Software has released
EchoMac 1.0, a software application that enables Mac OS X users who are also amateur radio operators the ability to access EchoLink.
EchoLink works over the Internet, through Voice over IP (VoIP) technology. With EchoMac, licensed amateur radio users can connect and talk to other amateur radio operators on remote systems including repeaters, links, conference rooms or other users.
EchoMac requires you to be a registered EchoLink user (to do that you have to register your call sign), but once you do and you’re approved, you’re off and running. System requirements call for Mac OS X with the BSD Subsystem installed (it’s been tested with Mac OS X 10.2); a sound input device and speakers; Internet connection; and 800 x 600 pixel screen resolution.