if its proper monitored comms yes you would be notified of a line cut. Doubt the risk warrants g4 comms but trying to avoid you feeling a false sense of security.
id never use a dialler for anything
id look at this before buying any diy aimed rf system
http://www.dailymail.co.uk/news/article-4700290/Criminals-beat-alarm-click-electronic-device.html
it will melt the varnish of the windings, but id assume the reg will fail first, taking the br with it, then the tx
ideally that will cause an mcb trip, but if your on rewireable fuses who knows. Been many appliancies caused issues
the tx will survive the charger wont, have a look at the bored(sic) Its designed for an assumed load, You cannot expect a budget pro panel to take a proper load.
Also yes a tx will wear out, if you overload it, they have a design temp and load
As a pro alarm man of many years you know what really hybrid is, im assuming however you mean its like a combination of 2 panels, menu wise?
Also Id say Mr h is one that has worked on more variants of.hit than me, so I wouldn't discount his hybrid ear
you can take a live stream from them, certainly jpg but iirc mpeg4 too. I don't recall the url used but there is a many docs online for it. I wrote an app many years ago for a customer that pulled the streams in