If you have queueing enabled on the CUAC hunt group you must look at the Attendant Console client in the Broadcast Calls pane. The operator must "pull" the call from the broadcast queue; the phone does not ring.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.