CommuniGate Pro Domains can use the following levels of Directory integration:
No integration; the Domain and the Domain Accounts settings are stored in .settings files, and when an Account is created, updated, renamed, or removed, Directory is not updated.
Synchronized; the Domain and Domain Account settings are stored in the .settings files; each Account has a Directory record that stores some of the Account settings as attributes:
When an Account is created, renamed, removed, or updated, the Directory is automatically updated.
Finally, the CommuniGate Pro can use regular (non Directory-Based) domains, but still allow Account provisioning via LDAP, so it looks like the Directory-Based Domains are used and LDAP commands can create and update Account. This feature is called LDAP-based Provisioning.