I ran into a bit of a strange issue. We had a few people leave recently. I delete the phone # then purge the phone from Call Manager 7. So I get a call from our local support saying one of the people I deleted still shows on a phone. So I look at the mac address and verify it is no longer in call manager which it is not. He can call me from that phone and the caller id says its from the person I purged. I traced the call from my phone to that one and it connects and gives me the mac address of a phone that is not in CM on either the pub or sub..