I had the same problem the with PBX Ericsson MD 110. The problem can be occur in the parameter variant qsig. Verify that parameter if is configured and PBX and CallManager. The parameter can be the same. In the CallManager access page adminstrator
Please goto service parameters->advanced-->clusterwide--> Qsig
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.