Worldwide communication
Senior Airman Miguel Reed, 2nd Communications Squadron Infrastructure Flight, uses a lineman's handset, more commonly known as a butt-set, on Barksdale Air Force Base, La., Sept. 25. Infrastructure flight Airmen use these handsets to test phone lines to monitor if they are functioning correctly and perform the proper maintenance should they find a faulty line. (U.S. Air Force photo/Airman 1st Class Andrew Moua)(RELEASED)