Show HN: I'm trying to turn an old rotary phone into a mobile phone

There are commercial products to do that, such as the XLink BT, which connects land-line phones to a Bluetooth cell phone. Both dial pulses and Touch-Tone tones are accepted. The XLink box even produces the proper 88V 20Hz ring signal old mechanical ringers need. I considered building an interface, but the off the shelf solution was only $50.

I use one in our telegraph office at steampunk conventions, attached to an antique-looking phone. See:

https://vimeo.com/97062822

Here's an example of a vintage phone interfaced to an Android phone.

http://hackaday.com/2011/08/25/vintage-phone-has-a-dirty-and...

When you pick up the receiver, it says "Number, please", and gets the number via voice recognition.

Not to steal your show, but my friend did something very similar - https://hackaday.io/project/2933-Retro-GSM. Fully functional and with a very classy look :).

Good luck with your project! Things like this are extremely rewarding.

This is glorious, and I absolutely loved your writing. I had a good laugh (no, not just a chuckle, but a strong, hearty one!), and can't wait for the next update.

Cheers for an awesome project and a great sense of humor. :)

Sparkfun used to sell one of these. https://www.sparkfun.com/products/retired/287

Do it, then return.