Rotary Dial to DTMF

[Demon]

Cool as always.

Robert

[Art]

Thanks
The law is tight in my country, anything connected to the phone network must be Ctick approved,
even if your circuit is isolated I think.

I thought it a good start for beginners.
To finish it, you'd want a DTMF chip (this is minimal PBP software DTMF),
and decide which of the two ways it will work.

It was a practice, I might get a nicer old phone one day,
but I will go the way of sacrificing a modern cordless handset.
The pic controlling that is a different program.

[Charlie]

Almost all telephone systems will still work with rotary dial, so converting to DTMF is fun, but not actually necessary... I suppose it's possible your telephone provider managed to turn it off for some reason, although I can't imagine why they would.

[Art]

Because we don't have a real phone line,
only an emulated phone port to keep old phones working (existing cordless and such) that port is provided by our router.
Our phone given to us by the communications provider is an IP phone.
If we plug a phone directly into the phone line it doesn't do anything.

[Charlie]

Ah yes, VOIP is usually the exception.

[Art]

It was a practice, I might get a nicer old phone one day,
but I will go the way of sacrificing a modern cordless handset.
The pic controlling that is a different program.

Moving up in the world!

Looks like the project is back on