i have a phone line in the house, but haven’t plugged a phone in to it in over 3 years. i keep it around since i use dsl, but now that i’ve seen this neat project, i think i’m going to make a batphone. this how-to has pretty much all you need, i think i might make a slightly different version where the bat phone is a bluetooth headset, then i don’t need to use the phone line.
