Sorry for the blast and for such VoIP questions. Due to the luck (tone's of material) of CISCO site and time constarin I was hoping that someone already knows the answers and is willing to share with the comunity w/o having to go to the pain and do a lot of search on CCO and hoping that you might find the fair answer for those questions.
Someone would spend a day typing everything up for you. If I were you, I would pick up a CallManager book. "Cisco IP Telphony: Planing, Design, Implentation, Operation and Optimization" There is also "Cisco CallManager Best Practice."
Or call your local Cisco Sales guy, they have local SE's that can give a briefing of the product in more details.
Most of know all the answers to those questions, but it would take any of us 2-3 hours to pull up. The books Cisco have out are great for reference and quick lookups for this stuff.
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.