I currently have LDAP integration enabled on my CM but now need to add users from another domain.  Since I don't believe CM will allow me to use LDAP to another domain, can I disable LDAP without it automatically deleting all of my current End Users?

I have a new Callmanager/Unity installation using WebEx Connect for presence.  I've gotten everything setup so that all of my users can make and receive calls from their WebEx clients, but only my client (the first one I setup) is showing as register...