Technically on the programming cable they are not the "mic/phone plugs" because there are no wires for the speaker or mic audio. In other words you cannot take a programming cable, cut off the USB end and use it to make a speaker/mic. The wires necessary for speaker and mic audio (the green and blue wires in the pinout provided by Walt, N3PLA in the following link) are not included because they would not be connected to anything.
The 3 wires that are inside the programming cable are for RXData, TXData and Ground only.
This page also includes a picture of my homemade programming cable with black, brown and yellow wires.
Jim KC9HI
