Really think he pull that portable DTMF box out of his @$$.
I got it to work thou now I just need a case for it and it's not portable thou...
That 8-ohm speaker he spoke of doesn't have enough power to even push the tones out of it.
you'll need a 45-ohm speaker and one out of a telephoney handset. I use that and a 120v to 6v transformer and
plug the thing it an eletric socket and it work. The phone keypad needs at least 6v of AC power too.
Now what did U learn this week...











