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Can I connect a cell phone to an old touchtone landline phone? Answered

I want to connect my cell phone to an old 70's touchtone landline phone. Can this be done. I know you can connect a reciever to a cell phone but I miss the old touchtone keypad. Any advice?

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VIRON

10 years ago

Someone did it with a rotary phone, and I'd think a tone phone would
be easier. Both ancient phone types are otherwise very similar inside.
Sparkfun retro cellphone
They removed their DIY instructions though.

Still in the sparkfun tutorial section, I believe.

. It should be possible, by putting the TT keypad contacts in parallel with the cellphone keypad buttons. I seriously doubt that it is feasible, though.

i dont know.... but if you do manage to get it done, i would love to see how you did it.