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Inspired by R10n & his "Mission: Impossible - Pendeli" Geocache, (http://www.geocaching.com/geocache/GC2NQ9A_mission-impossible-pendeli), we decided to create our own version:

Any good old analog phone will do, the bigger the better. Using an Arduino & a wave shield, you can make the phone behave any way you want & even fool someone into thinking they have reached an actual number and they are listening to a voice-mail.

This project can be done in a few hours and for very few dollars.


Step 1: Gather the materials

We enjoy going to yard sales & estate sales and have found numerous telephones for $2 - $4. Even found one for $1.
We used 1 Arduino Uno & 1 Wave Shield for the first phone. With a 9 Volt battery, you have power for a very very long time.

The phone original keyboard was defective (didn't want to spend too much time to find replacement keys/fixing it) so we had to substitute it with a Membrane keypad in this case.
<p>HAHAH THIS GUY IS AMAZING CONTACT Extremehackerservices@gmail.com HES THE BEST!!!</p>
Reminds me of the &quot;chinger&quot; we made (well mostly my friends) to use with pay phones! Pre-cell days. You guys are great!
what if you add this to a rotary phone and make a cell phone out of it?
robot797, I love where you're going with this. Totally doable &amp; way cool!!

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Bio: We love to tinker. There is nothing that we can't do if it involves Arduino. Challenge us: Do you have an idea for something ... More »
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