If you were an electrician, you'd probably consider it quite an honor to be asked to work on Air Force One. That sense of pride would quickly disappear when you saw the scale of the task in front of you.
All those phone lines on the plane - along with all the other electrical devices - need a lot of wiring. If you laid the wires inside the plane out end-to-end, they would cover 240 miles. Imagine trying to pin down a single fault among all that!