Instructables user [apple_fan] likes vintage telephones from the early 1900s, but while they are nice to look at, they’re clearly not too useful nowadays. He decided to change that, and retrofitted an old operator-dialed telephone with some modern amenities.
He gutted the phone, stripping out the large electromagnets and capacitor that were once used to facilitate placing and receiving calls. He added an Archos 28 tablet to the box, wiring it an IOIO board, allowing him to interface it with his Android phone. The old microphone and speaker were swapped out for updated components, and a new ringer actuator was built to replace the bulky old unit. The tablet and ringer, along with the rest of the components were then carefully hidden away inside the box as not to alter the aesthetics.
To place and receive calls, he installed CMU Sphinx on the Archos tablet, allowing him to interact with the phone using voice recognition, as if he was talking to a live operator.
It’s a pretty neat project, and while we might have opted for a small micro combined with a Bluetooth headset, [apple_fan] makes it clear why he made the hardware decisions he did. We’re always up for letting people show us a different way to get a job done, so we’re down with that.
Check out a short video demo of the phone in action after the jump.