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Figure 2 - Test your phone to make sure it works and then tear it all apart
Figure 2 - Test your phone to make sure it works and then tear it all apart

Once you have found a desktop phone that works and can be sacrificed in order to become reborn as something better, remove all of the screws and spread the innards all over your workbench! Take the phone apart as much as you can, taking note of any wires you absolutely have to cut in order to get the main circuit board removed from the plastic case. The phone I chose shown in Figure 2 came apart fairly easy, but I did have to cut a few wires to remove the plastic casing. The good news is that most of the cut wires will not be needed in the final version, but do take note of where they were in case they are needed to make the phone function later.



Figure 3 - Breaking down the phone until only the circuit board remains
Figure 3 - Breaking down the phone until only the circuit board remains

The goal is to tear your phone completely apart and reduce it into the smallest functional size possible. Remove all of the screws and reduce your phone to the bare circuit board as shown in Figure 3, taking note of any wires you have to cut that lead to other smaller printed circuit boards. Most phones will only have a single circuit board inside, but this one had several as it seemed to be an earlier model that was "upgraded" to have a hands free option and built in calculator. If you have to cut the wires leading to the wall jack or handset, take special note of the color and placement of these wires.

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