A collection of useful links which will help you on your MilNet journey:
https://radioarena.co.uk/
Manufacturers of the Version 3 interface cable utilized extensively in this project. A link to the actually cable is here.
https://www.allstarlink.org/
AllStarLink, the transport layer at the heart of MilNet and the centre of the RoIP cluster.
https://secure.echolink.org/
EchoLink. Your first stop in connecting to MilNet. Don't forget you need to validate your Callsign before you can use EchoLink. Details here.
http://milnet.io/allmon2/
The MilNet Cluster AllStar and EchoLink bridge connection. Here you can see the communications happening between the 2 networks.