If you have a huge network of employees and want them to be able to contact eacho ther without the use of internet then this is a software for you. This software uses the Local Area Network to create instant messaging and also enable sending files over the network easily.
This is a cool little software created in JAVA and works on any operating system that has Java Runtime Environment installed. You don’t even need a server to authorize yourself, you just need to be on a network and your computer is assigned a IP by the DHCP server.
The software is developed by Chun-Kwong Wong and is under GPL license and the project is hosted at SourceForge.net. You can view the Homepage of the software at EZIM. And you can download the latest version of the software from the softwares project page at SourceForge: