Fucking around on Youtube when I found this.
http://www.youtube.com/watch?v=kMktNgHZ9w0
Has an actual bell ringer, and if you look at the end of the video, you can see he's calling it on his cell.
Number: 425-883-9905
that's NOT a COCOT. frontier only has old-school payphones with no computers in em' you can probably redbox it.