The "Hellooooo ... is anyone there?" is from the George A. Romero zombie movie "Day of the Dead". It's from the opening sequence in a deserted Miami. I had the clip from the movie as my phone ringtone for a while.
ok.. it's not. it's the movie RV87 was talking about. But there are many parallels, am i right? maybe the composer of the 28days later soundtrack was inspired by "day of the dead". .. . man das beschäftigt mich grad viel zu sehr...haha