We use the following IRC channels for discussion and answering questions. At least one member of the core development team should be available on this channel most of the time. Nevertheless we encourage you to use the [mailing lists] instead, since they are easier archive- and searchable. Github will also publish commit notifications on this channel.
If you are using Mozilla, Chrome or Safari you can just click on the IRC link
Here are the connection details.
server: irc.machts.net port: 6668 room: #openengsb
The IRC channels are logged and all conversations could be followed here.