Here is an explanation that I found on internet that seems
pretty accurate I hope it can clear the meaning VOIP, voice over ip, voice IP
or how you want to call it.
What is voice over ip? Well fancy vibration really. Have you
ever seen one of those sci-fi movies where a group of astronauts, gives shot up
into space usually to fight some aliens of go to space station or something
like that, every sci-fi space movie has this scene where one of the unfortunate
astronauts hits the wrong button or goes trapped by an alien or something and
gets shot out of the side of the space station into the empty atmosphere, if
the movie is being accurate what you see is this unfortunate astronaut
straggling going (haaa, haaa) he is yelling but there is not sound, he is
completely silent.