I am running CUCM 6.1.
I recently installed CUPS and am able to login to Personal Communicator but have no functionality.
In regards to LDAP, I am a bit confused. Must CUCM and CUPS be integrated with the corporate LDAP server?
In CUPS, make sure you have the LDAP pointed the Global Catalog server and on the correct port. You can't use LDAP 389 to a GC or DC. You have to use LDAP 3268.
Restart the Presence services. Restart you CUPC client. Make sure CUPC completely logs out. It seems to take about minute for it close out.
Also, you can check the log files on the CUPC client to see whats up. But I bet the LDAP change will then show you searches for LDAP and be able to add to buddy list, etc