welcome to the wonderful world of UCCX :-) Please fasten your seat belt, it is not going to be a smooth ride.
What I would do:
- make sure you are familiar with the following terms: ACD, CTI, JTAPI, TDM, VoIP, basic telephony features (forward, transfer);
- obtain a server or a beefed up PC, put VMWare ESXi and then install CUCM and UCCX - it's relatively easy if you choose the deafult options;
- try to create realistic scenarios, e.g.: "I want to build a basic call center with two agents and simple queuing", "let's create an IVR with 3 options" etc. and try to implement them. Later on, I would check out the scripts and example applications (refer to the link I sent).
If you get stuck, read the documentation first. It's not easy for a beginner, but helps you to get familiar with the documentation - and yes, you will need it even when you become an expert.
If you are really, really stuck and there's no document or already answered thread, then create a new post here, including the detailed description of your problem and the steps you tried to solve that particular problem.
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.