Vmware workstation or Esxi images?
I'm preparing to take the CCIE Voice lab exam and while searching to get material I found that virtual images of the main Servers/application (CUCM, CUC, CUPS, UCCX) are sold in two versions, workstation and Esxi. I've been using workstation to run a CUCM and I wonder whether it would be better to buy the images on workstation or Esxi. Is there any free version of Esxi like there's of workstation (Vmware player)? Which one would be best to choose? Thanks!