Rotary phone with PIC

[Felch]

Thanks!
Actually it was a fun-project for the annual electronics-hobbyists and -engineers meeting (hold in Tallinn, Estonia every august), nothing more.
You could imagine the roar of laugh when, during a speech hold by one of participants, my phone suddenly rang...(real call, not "organized").
Don't know how things go in the wide world but in our country caller ID is not a free service (does not cost much, of course).

Are You quite sure that rotary dialers are dead? There are some "retro" mobile phones on the market right now... It's fun!
Btw, it's not difficult at all to implement a sound synth chip like ISD40xx in the circuit. Done it,works OK. Only...no good idea for using it. Must be fun also!