I have seen many posts here saying that LDAP is necessary for contact lookups. I want to know if you were in an environment that lacked any type of LDAP structure what would your options be? It seems the only functionality i would lose is the capability to add contacts to my groups because there would be no search context. Login in would still be successful though (in my thinking) because this would go back to CUCM to be authenticated. Am i missing something here?
Edit* I have seen some things about Federations but I am not too sure what that means or how I would use it.