WOW how did they do that?!?! That is the greatest thing ever
Oh yeah I got a little tip you can kinda pull the same prank with Skype nowadays.
Anybody who is familiar with Skype knows how to do this:
Setup a conference and call all pizza huts in the area. Watch the madness unfold.
You can basically connect anybody with anybody you want. They will think they were called by whoever is in the conference Chinese places are also funny