Look who's talking. It's clear that neither you nor Mr. Anon have ever had to manage this kind of system before. It sounds like a simple and obvious question on the surface, but once you dig down into the actual details, it's anything but.
If you want to use facetime, then everyone needs a mac/iPad/iWhatever.
Sure you can use something else like hangouts or skype, but the asker made no mention about how he intends to deploy this software.
Does every resident get their own machine? Do they share a common one? Has network cables already been run through the areas where the asker intends to have the video kiosks? How do you manage the local environment? These are all questions that need to be addressed, and the only way to do that is to have someone physically go there, look things over, and give a set of *viable* options based on their current environment.
You may have read the post, but you clearly didn't *comprehend* it. Or at least, didn't even stop to consider the possibilities before shooting your mouth off in an attempt to compensate for your lack in other physiological aspects.