Callmanager 5.1(2). Users reported not being able to dial certain extensions. I have a single site with two Partions for IP Phone DNs. Both partitions are in all Calling Search Spaces. When dialing the DN in question you get a busy signal. I tried opening the DN and changing it's Partition to something else, then changing it back. The phone reset and I was able to dial the phone. The phone was registered before and after changing the DNs Partition, and the DN does not exist in any other Partition. I'll assume this is a bug of sorts. If anyone has a clue please let me know. Thanks!