I have multiple CUCM clusters with multiple Expressway in different regions of the world. At the moment when a Jabber user from external does a directory lookup they only see users in the home cluster because of UDS and the directory is limited to each region. My question is if I enable ILS (Intercluster lookup service) between the cluster will the Jabber users be able to see all the users in other regions. I do have all the IMP servers peering to each other. Internally Jabber users can see all users from other regions.
