I had an ATA 186 trying to access 10.1.1.1 (SRST). My firewall blocked it because that IP is not in my network. Come to find out it was coded into my ATA by default. Not sure if its due to CUCM BE business edition or not but. I went to the ATA webpage and changed the SCCP settings on CallManager0 and CallManager1 from 0 to the IP address of my Call Manager.
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.