I find it amusing that you assume that I'm 'so worried' in the first place. Concerned yes... worried no.
I find it amusing that you also assume that I'm not 'concerned' about quality, seemingly, just because my 'intro' security system purchase was a Swann system a few months ago. I'd read on several websites that Hikvision is supposedly one of the best available and that Swann systems are just Hikvision re-branded. Maybe so, maybe no... on more than one point. I do want a better system and I will upgrade to much better quality.
I find it amusing that you didn't offer any 'Yes brand-X does, brand-Y does, brand-Z also does' type of a reply... or offer something like 'sorry, but there is no company that I know of that offers that capability in there product line'. So it appears that you do not know.
Your 'signature' states: "Licenced Security Installer & Trainer". If I were a potential customer, an actual customer, or a current client of yours and you responded to one of my questions with a reply like that... totally devoid of any useful and pertinent information but rather laced with some semblance of sarcasm... I would not... BE.
But thanks for your reply just the same.