SvxLink is a multi purpose voice services system for ham radio use with EchoLink support. The biggest change in this release is the addition of EchoLink conferencing. That is, the software now supports multiple connections at the same time.
The SvxLink project can be used as a replacement for the Windows only closed source EchoLink application. To get started, have a look at the SvxLink homepage: http://svxlink.sourceforge.net/