LDAP Integration with CUCM 9.0

We would like to use LDAP to sync all of our users from Active Directory.  All of our current CM Users are local, the problem is that they have the same user names as our Active Directory users.  From what I understand this is going to be a problem because:
"If accounts from LDAP match an existing Unified CM account that is not marked as an LDAP synchronized account, then these accounts are ignored."
Does that mean we will have to delete all our existing CM users in order to sync the LDAP users correctly?  Is there a best practice for this?  Once we syncronize the LDAP users how to I ensure that the user gets associated with the proper phone?  Or do I have to visit each user individually? 

I just did a quick test for this, my lab CUCM 9 is already LDAP integrated, but I created a local user, then I created that same local user in my LDAP OU, and performed a full sync.
The user is no longer showing as a local active user, but as an active LDAP synchronized user.
Which was my thought, there's only one conversion, from LDAP to local.
The behavior is just as with any previous release, local users who match an LDAP user after you enable it, are just updated, and kept with all their configurations.
I checked the option to turn it back again into a local user, did a full sync, and it's again an active LDAP user.
HTH
java
if this helps, please rate
www.cisco.com/go/pdihelpdesk

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