why is it called echo?

A previous poster wrote this:

(Note: for those not in the know, "The Echo" isn't a direct translation of the word "Sigaw." The actual translation is actually "Scream." Of course, they can hardly name the American movie THAT. :) "Echo" though probably captures the mood of the movie more than "Scream" or "Sigaw" actually do...)

I dont understand why they couldnt name it Scream, if its because of the Scream franchise then its silly because many movies have the same name.