Meetecho is an open source software, based on a number of open source components. This applies to both the client- and the server-side of our architecture. As to the details of our licensing policy, we chose to rely on GPLv2 for most of the components.
You can download the client from our site www.meetecho.com. Before downloading, you have to subscribe. As to the server, it is an orchestrated combination of one or more clouds made of: (i) a modified version of Asterisk; (ii) an XMPP Openfire server with our plugins; (iii) a home-made video mixer; (iv) a Tomcat servlet container. The orchestration protocol is also made by us.