System to connect amateur radio operators to repeaters, simplex links, and other hams. Includes interface information, documentation, and node information.

Site about VoIP technology with IRLP, eQSO, Echolink, Wires-II and so on in Russia

High-end project to link repeaters worldwide via the Internet. Includes node status, hardware and linking information, and FAQ.

Using open-source Asterisk PBX and Linux to build an internet linking platform to simultaneously control several repeaters at one site. Technical and contact information.