I know nothing about that candle shit, and the clock malfunction isn't even paranormal, just have someone check it out, but the phone call dropping sounds like
confirmation bias. Are you sure that your call is dropped every single time you go into that corner? How long are you going to stand in that corner expecting for it to be dropped? Has it ever happened somewhere outside that corner?
Shit, maybe the cold weather is responsible for the last two. I can only speculate of course, and I would advise you have a professional check that shit out.
I just hope you don't look for bullshit paranormal explanations.