We are experiencing this issue when we try to call into an existing mailbox from a newly configured phone in a newly configured location (New device pool, new local,new location etc)
when calling in we are prompted to change our password even though the mailbox called has been established (and in use) for a while, and the password is set to never expire. This happens every time we call an "established" mailbox from a newly deployed location.
Any ideas, comments would be appreciated. Thanks.