1. Ensure all the end users have first name , last name and telephone number field attached to them.
Ensure that you can ping the CUEAC server from the client machine using hostname.
Go to Directory Synchronization and tick the check box "Enable Directory Synchronization".
Restart the LDAP plug in. Ensure that there are no directory filters that is preventing the import of users from CUCM database. The LDAP logging in the CUEAC server will be helpful.
2. Go to TSP settings. Change “Desired number of possible Automated Voice lines under “Automated Voice Calls”, from current 5 to the recommended 255. Re initiate a sync with the CUCM.