johnwasser:
skylerl:
Edit: to clarify, yes it is a land line, and hopefully a touch tone.Excellent. That will be much easier than a mobile phone.
One more question for clarification: Does the phone need to continue working as a landline phone in addition to playing sounds? If not you could tap into the matrix keyboard and use the Keypad library to translate key presses directly to characters.
No it doesn't, it just needs to look like a phone.