DIY old-timey Skype phone mod

"Hello, Operator?"
"What d'ya want dude? Are you playing with your new Old-Timey Skype phone mod again? Heh, 'new' Old-Timey"
"I'd like Hillside 5540 please. That's HILLSIDE, DOUBLE FIVE, FOUR OH"
"Do we have to go through this again? You purposely modded that old phone toy so that it could tap into Skype!"
"Hello, are you there? Operator?"
"*Sigh* Fancy some Gears later?"
" ... "

[Via MAKE]