We have installed UCA on a server and synced with HX. The communicator is up and running fine except I cannot see the presence of other people in my corporate directory and cannot chat with them.
I have the chat feature enabled for the users and still nothing.
OK I believe after looking further that the issue is seeing the presence. Once I see presence, I believe that chat will work. Also, do I have to have microsoft office communicator or window live in order for chat to work?