Things to be done at first
↣ Start cutting the USB cable in half directly. By doing this, you can easily chop the wrongly made cut and you will still left with cable to work with.
↣ Cut off the connectors as close to the connector as possible of your phone cable.
↣ You can now strip the cables and take off the outer jacket only to expose the inner wires using the cutting pliers. If there is a need to cut into one of wires, chop the rest off and strip the next cable section.
↣ Solder the cable. Solder each wire of the cable to one wire of the phone cable until every wire is soldered. Mark the colors you matched up and solder one wire at a time on the other side, while checking the previous color match ups.
↣ Once the soldering process is done, wrap around each soldered connection using electrical tape to ensure no bare wire is exposed. If you are using heat shrink tubing, slide it up over the connections and shrink it. You can use electrical tape as alternative to wrap the exposed wire.
By following these five easy steps, you can make your shorter USB extension cables longer using telephone wire. If you want more info on wires and cables, kindly contact the manufacturers and suppliers today. You can get extension cables and wires at reasonable rates from them.