I have a bunch of Mitel 5000's networked together with each PBX having it's own external/incoming PRI. If I enable DEE for a user on that switch and one of numbers in the DEE list is an external number, all inbound DID calls work fine. However, if someone from a different node IC calls that number, the outbound call never happens. I'm assuming it's some sort of trunk permission but I can't seem to find the issue. Any ideas?