I've made some progress, so I've got hunt group 2004 with 1 station in - 201, and hunt group 2003 set as recall and overflow after 7 seconds with about 15 stations in,
that works as long as hunt group 2004 isn't flagged as an "ACD Hunt Group" if it's flagged true the outside call gets a busy tone?
However if 201 is on DND it doesn't work, the outside call instantly gets a busy tone and that's it
