TeleFinder displays Communications Toolbox icon when the communications toolbox is installed. Click here to close this window without changing serial ports. Click here to open and use the selected port. Scroll bar Use the arrows to scroll the list a little at a time. Click in the gray bar to scroll a windowful at a time. Drag the white box to scroll to a different part of the list. List of Serial Ports Select a serial port to use from this list. The port status is busy if TeleFinder or another program has already opened it.