I'm not sure why this is happening but, I have a extension 321 that has been setup as a testone that some users use to test microphones, the directory 321 does not go DND but some how it is linked to another directory number 8814 that does go into DND and when that happens all of the microphone tests fail. I'm not sure why this extension is going into DND and it only happens once every few months. I have gone through the logs but nothing seems to stand out, I get no warnings or alarms. Does anyone know what could be happening?