Hello all;
is there any resources about how to build "a virtual lab" to practice the new collaboration exams (CLCOR, CLACCM, or generally Collaboration v3 topics)?
For example I want to know how we can practice PSTN call routing and work with virtual voice gateways (if that was possible though, I don't know) while there are no any physical routers in the lab?
I installed CUCM 12.5 and as I know all the server images are available for the ESXi (CUC, CUP, CMS, expressway, etc). But I cannot find any information about proper way of studying.
Any help/idea?
