Brian,

 

Following on from before, there's one item that I can't see how to do outside of modifying the directory\default.xml file, and that is setting up call groups.

 

I thought that I'd perhaps be able to do something similar to creating user dial plans and create a new file in directory\default\  which would be loaded before the other extensions, i.e., called something like 00_groups.xml and have the call group created there. (My test file is shown below). That did not seem to work, am I on the right lines or should custom groups get created somewhere else ?