Don't answer the phone after seeing what horror movie?

If you think about it, there are quite a few horror movies that involve something horrible involving some unknowing victim who makes the mistake of answering the phone. Which makes you the most apprehensive when the phone starts to ring?

That was one thing that Scream had going for it that the killer was on a cell phone so he could be anywhere. But after seeing the remake of I Saw What You Did...that one is a VERY scary thing that you could just randomly pick a name out of a book and it gets you involved with a psychotic murderer.

None of 'em.

when i first got a "teen line" in my bedroom... my sister was terrified to be in the house thinking a guy would start calling her from my bedroom like the original when a stranger calls