See if this guide from SparkFun on hacking on old (US) rotary phone is helpful: https://www.sparkfun.com/tutorials/51. Decoding the dialer could be done with a small microcontroller, and you could use Adafruit's audio FX board to to trigger up to 11 clips. Or the Pi can certainly do it all. This lo...

Is this is a phone that is not connected to a phone line? [ETA] If you want to use the phone audio circuit you may need to provide power to the phone.Do you want the sounds to play through the phone handset or a loudspeaker? I am fine with all the audio and power stuff. I currently convert old phon...

Thanks mahjogg. That answers one question. I need a DC blocking capacitor in order to input the DTMF tones to the Raspberry IC. Am I correct? Am I to assume by this that it will also be possible to then program the Raspberry to complete the tasks listed in my email and give me an option to use conta...

-Please excuse my total ignorance of all things Raspberry at this time and please feel free to correct any misconceptions or terminology errors in the text below. I’m not as young as I used to be and finding the mere idea of all this stuff scares me senseless. This post is the very start of my journ...