Hearing mp3 recording through a touch-tone phone?

Projects General Guidance
1

Hi there,

I'm very new to arduino and I can't figure out what I need for this project. Essentially I want to create a phone simulator, but with mp3's instead of multiple phones/answering machines.

I want to have an mp3 uploaded to the device, then "call" that mp3 with a phone. In total I want 3 mp3's to be saved on the arduino. Each one will have a number and you'll hear them when you dial the correct number. When you dial any incorrect number I want to program it to make a busy signal after the 4th or 5th button. Is this possible?

Thank you!

2

Arduino cannot store Any MP3, not enough memory. You really need an MP3 player module with SD card that will play back a commanded file.

3

Sounds like fun. Get an LCD, a matrix keypad, and MP3 playing module with SD card slot and you're good to go. For a moment I thought you were going to call an actual phone number to hear messages.

4

I do want to make it an actual phone though. And I'm hoping to program it so it is a 10-digit number. So I want the user to feel like they are dialing a real phone number and getting a message. Is that possible?